Okay, so I fixed the comment backslash thing. It required removing addslashes(...) from something, amazingly enough.
I just hope I didn’t leave myself open to that SQL Injection Attack thingy that page was talking about…
Now I’m gonna go through every single comment ever posted and remove them all. Funness.
Edit: Well, that’s… kind of nice. Apparently due to some strange misconfiguration, the backslashes are removed automatically when I go to the comment editing form. Unfortunately, it removes legitimate ones, too (unless they were escaped by a false one). I hope I didn’t break anyone’s post.