I’ve wondered about this quite a bit. If I were a fucking asshole like spez and wanted to defeat edit/delete scripts, I would set it so there’s 2 entries, one is the original comment and a second column for an edited value. Everytime there’s an edit update the 2nd one.
I had the idea to start all my comments with gibberish, and then edit with my actual comment, but that got a little tedious lol.