After today's MultipleMan's rampage - he created DOZENS of "throwdowns" entitled "DJTG_2010 sucks" after said user reported him for inbox imploding - another idea occured to me: "cooldown" times. I'm sure there's a correct name for it, and that it's not "cooldown", but here we go: after an user posts a throwdown/argument/blog entry/comment/whatever, he must wait a certain amount of time (say, one minute - could be less, could be more) before he's allowed to post something again. That's something that is already used in other websites - IMDB uses it, for example; there, you must wait 1 minute and a half before posting again. And if it's done by IP-checking, better yet - no account-hopping will help the FanAnarchists.
No, it won't keep people like MultipleMan from creating multiple throwdowns. But it'll certainly guarantee that an admin would see it and ban the offender before the entire throwdown page is vandalized. The same with inbox imploding, I believe - if the system outright locks one from posting again, I guess it would simply ignore any "overflow" generated.
Again, corrections and suggestions welcome, as always.