Editing a comment after others have subsequently commented can make the discussion thread really confusing when there is no evidence of the edit being made. And, some users edit their insulting/inappropriate comments, essentially deleting the history of poor behavior.
Most websites either don’t allow you to edit your comments after posting (I’m not endorsing that), don’t allow editing after a certain time period, or they allow edits indefinitely and display that a change has been made, often the actual changes between edits.
I would like iNat to adopt an edit history style much like is available here on Discourse–a visual display that a comment was edited + the changes that were made between edits. I do like that there is somewhat of a “grace period” on Discourse before edits are publicly logged; but I could go either way on that.
This should apply to all comments (on observations, journal posts, flags, taxon changes, etc), including the comments attached to IDs.