If we turn IMAP-JS on as planned then it would prevent this from having any effect on users. It still needs to be fixed, though.
Bug 1816633 Comment 9 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
If we turn IMAP-JS on as planned then it would prevent this from having any effect on users. [on Daily] It still needs to be fixed, though.