The point is: today one (OK, OK--two) got started on my wall, and even after I bowed out, some new participants came along and started pouring--unintentionally I'm sure--proverbial gas on the proverbial fire. Seeing where this was going and not wanting to delete comments (damn you, deeply-engrained First Amendment ethos!) I resigned myself to my fate and just added a comment that read "Oh boy, this [thread] is gonna get worse before it gets better"* and a link to one of my favorite Simpsons moments:
I don't know that it will help any, but I like to think it's clever.
Go ye and do likewise.
* Alteration in original. <-- sorry, but I have to be precise like that. It's an OCD thing.