diff --git a/Extensions/UIView+Extensions.swift b/Extensions/UIView+Extensions.swift
index 6bdcb0b..346afc7 100644
--- a/Extensions/UIView+Extensions.swift
+++ b/Extensions/UIView+Extensions.swift
@@ -25,4 +25,15 @@ extension UIView {
 
         layer.contentsRect = CGRect(origin: origin, size: Self.defaultContentsRectSize)
     }
+
+    // http://www.openradar.me/25087688
+    var isHidden_stackViewSafe: Bool {
+        get { isHidden }
+        set {
+            if isHidden != newValue {
+                isHidden = newValue
+                alpha = isHidden ? 0 : 1
+            }
+        }
+    }
 }
diff --git a/Extensions/View+Extensions.swift b/Extensions/View+Extensions.swift
index ff813f8..2fe3524 100644
--- a/Extensions/View+Extensions.swift
+++ b/Extensions/View+Extensions.swift
@@ -10,13 +10,4 @@ extension View {
             Alert(title: Text($0.error.localizedDescription))
         }
     }
-
-    @ViewBuilder
-    func animation(_ animation: Animation?, if condition: Bool) -> some View {
-        if condition {
-            self.animation(animation)
-        } else {
-            self
-        }
-    }
 }
diff --git a/View Controllers/AddIdentityViewController.swift b/View Controllers/AddIdentityViewController.swift
index 0e11ac5..513d249 100644
--- a/View Controllers/AddIdentityViewController.swift	
+++ b/View Controllers/AddIdentityViewController.swift	
@@ -299,16 +299,3 @@ private extension AddIdentityViewController {
         show(registrationViewController, sender: self)
     }
 }
-
-// http://www.openradar.me/25087688
-extension UIView {
-    var isHidden_stackViewSafe: Bool {
-        get { isHidden }
-        set {
-            if isHidden != newValue {
-                isHidden = newValue
-                alpha = isHidden ? 0 : 1
-            }
-        }
-    }
-}
diff --git a/View Controllers/NewStatusViewController.swift b/View Controllers/NewStatusViewController.swift
index 2208b5e..2dfcf7a 100644
--- a/View Controllers/NewStatusViewController.swift	
+++ b/View Controllers/NewStatusViewController.swift	
@@ -96,7 +96,7 @@ final class NewStatusViewController: UIViewController {
 
             statusView.isUserInteractionEnabled = false
             statusView.bodyView.alpha = 0.5
-            statusView.buttonsStackView.isHidden = true
+            statusView.buttonsStackView.isHidden_stackViewSafe = true
 
             stackView.addArrangedSubview(statusView)
         }
@@ -229,10 +229,11 @@ private extension NewStatusViewController {
         }
 
         for compositionView in stackView.arrangedSubviews.compactMap({ $0 as? CompositionView }) {
-            compositionView.removeButton.isHidden = compositionViewModels.count == 1
-            compositionView.inReplyToView.isHidden = compositionView === stackView.arrangedSubviews.first
+            compositionView.removeButton.isHidden_stackViewSafe = compositionViewModels.count == 1
+            compositionView.inReplyToView.isHidden_stackViewSafe = compositionView === stackView.arrangedSubviews.first
                 && viewModel.inReplyToViewModel == nil
-            compositionView.hasReplyFollowingView.isHidden = compositionView === stackView.arrangedSubviews.last
+            compositionView.hasReplyFollowingView.isHidden_stackViewSafe =
+                compositionView === stackView.arrangedSubviews.last
         }
     }
 
diff --git a/Views/UIKit/CompositionPollView.swift b/Views/UIKit/CompositionPollView.swift
index 7a06dd3..686d956 100644
--- a/Views/UIKit/CompositionPollView.swift
+++ b/Views/UIKit/CompositionPollView.swift
@@ -131,7 +131,7 @@ private extension CompositionPollView {
             }
 
             for (index, optionView) in self.pollOptionViews.enumerated() {
-                optionView.removeButton.isHidden = index < CompositionViewModel.minPollOptionCount
+                optionView.removeButton.isHidden_stackViewSafe = index < CompositionViewModel.minPollOptionCount
 
                 if !$0.contains(where: { $0 === optionView.option }) {
                     if optionView.textField.isFirstResponder {
diff --git a/Views/UIKit/CompositionView.swift b/Views/UIKit/CompositionView.swift
index 554b4f8..2de2eb7 100644
--- a/Views/UIKit/CompositionView.swift
+++ b/Views/UIKit/CompositionView.swift
@@ -123,13 +123,13 @@ private extension CompositionView {
         textViewPlaceholder.text = NSLocalizedString("compose.prompt", comment: "")
 
         stackView.addArrangedSubview(attachmentsView)
-        attachmentsView.isHidden = true
+        attachmentsView.isHidden_stackViewSafe = true
         stackView.addArrangedSubview(attachmentUploadView)
-        attachmentUploadView.isHidden = true
+        attachmentUploadView.isHidden_stackViewSafe = true
         stackView.addArrangedSubview(markAttachmentsSensitiveView)
-        markAttachmentsSensitiveView.isHidden = true
+        markAttachmentsSensitiveView.isHidden_stackViewSafe = true
         stackView.addArrangedSubview(pollView)
-        pollView.isHidden = true
+        pollView.isHidden_stackViewSafe = true
 
         addSubview(removeButton)
         removeButton.translatesAutoresizingMaskIntoConstraints = false
@@ -162,10 +162,13 @@ private extension CompositionView {
             constant: -textViewFont.lineHeight / 2)
 
         viewModel.$text.map(\.isEmpty)
-            .sink { [weak self] in self?.textViewPlaceholder.isHidden = !$0 }
+            .sink { [weak self] in self?.textViewPlaceholder.isHidden_stackViewSafe = !$0 }
             .store(in: &cancellables)
 
         viewModel.$displayContentWarning
+            .throttle(for: .seconds(TimeInterval.zeroIfReduceMotion(.shortAnimationDuration)),
+                      scheduler: DispatchQueue.main,
+                      latest: true)
             .sink { [weak self] displayContentWarning in
                 guard let self = self else { return }
 
@@ -178,7 +181,7 @@ private extension CompositionView {
                 }
 
                 UIView.animate(withDuration: .zeroIfReduceMotion(.shortAnimationDuration)) {
-                    self.spoilerTextField.isHidden = !displayContentWarning
+                    self.spoilerTextField.isHidden_stackViewSafe = !displayContentWarning
                     textViewBaselineConstraint.isActive = !displayContentWarning
                 }
             }
@@ -200,24 +203,29 @@ private extension CompositionView {
             .store(in: &cancellables)
 
         viewModel.$attachmentViewModels
-            .receive(on: RunLoop.main)
+            .throttle(for: .seconds(TimeInterval.zeroIfReduceMotion(.shortAnimationDuration)),
+                      scheduler: DispatchQueue.main,
+                      latest: true)
             .sink { [weak self] attachmentViewModels in
                 UIView.animate(withDuration: .zeroIfReduceMotion(.shortAnimationDuration)) {
                     self?.attachmentsView.viewModel = self?.viewModel
-                    self?.attachmentsView.isHidden = attachmentViewModels.isEmpty
-                    self?.markAttachmentsSensitiveView.isHidden = attachmentViewModels.isEmpty
+                    self?.attachmentsView.isHidden_stackViewSafe = attachmentViewModels.isEmpty
+                    self?.markAttachmentsSensitiveView.isHidden_stackViewSafe = attachmentViewModels.isEmpty
                 }
             }
             .store(in: &cancellables)
 
         viewModel.$displayPoll
+            .throttle(for: .seconds(TimeInterval.zeroIfReduceMotion(.shortAnimationDuration)),
+                      scheduler: DispatchQueue.main,
+                      latest: true)
             .sink { [weak self] displayPoll in
                 if !displayPoll {
                     self?.textView.becomeFirstResponder()
                 }
 
                 UIView.animate(withDuration: .zeroIfReduceMotion(.shortAnimationDuration)) {
-                    self?.pollView.isHidden = !displayPoll
+                    self?.pollView.isHidden_stackViewSafe = !displayPoll
                 }
             }
             .store(in: &cancellables)