Are banned members supposed to receive email notifications?

Another thing to note, there is an extra class composing-whisper applied when you toggle it on, so you could make the preview more obvious too if you want.

Currently it does apply font-style: italic; to the preview but you could also add something to make it even more super obvious like:

.composing-whisper .d-editor-preview {
    background: #960000;
    padding: 20px;
    border: 5px solid #ffd600;
}

I guess this wouldn’t be useful for replies on mobile. But yeah changing the button I think would be an easy CSS tweak as well!