Sometimes I make a mistake in a fletcher command, such as using the wrong formula with !math. AFAICT, there's no way to get Fletcher to delete a comment like that.
The person who got Fletcher to make a comment should be able to get it deleted, just like they can delete their own comments. I suggest :x: because it's fairly intuitive and becaues it's used by Tupperbox, and having a standard helps.
This is now completed.