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When typing a comment, there is no button to "cancel" comments. A cancel button does exist for editing questions... so why not also comments?

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Think before you comment, suddenly... No need to cancel them anymore; or, just navigate away from it? – Tom Wijsman Jan 17 at 18:36
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Right, navigating away from a comment in progress causes it to vanish. Deleting the text (Control-A and Delete, or your OS's equivalent) also works. – Keith Thompson Jan 18 at 4:38
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1 Answer

up vote 6 down vote accepted

When you post something, there's no cancel button. When you edit something, there is. It's simply consistency.

When you edit a comment, you get the button.

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When you post an answer, you don't.

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Besides the obvious, comments and posts are very different.

  • Comments are shorter
  • You cannot edit comments after a few minutes, so there's little opportunity to have multiple editors open, like when e.g. you're cleaning up a question and its answers.
  • You cannot edit others' comments, same as above. How many comments can you edit, really?
  • Comments don't have a public revision history, which means accidental edits aren't kept for all eternity.

So even if they did behave differently, it'd not surprise me.

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