Adam from Mookie suggested MT-Close2 as a MT plugin that allows you to close older comments to cutback on comment spam. The most annoying part of my blog is checking my email and finding 300 comments of nothing but spam. I use MT-Blacklist that does a good job but has one pretty big weakness which is you have to have the url in your blacklist in order for it to block the spam. MT-Close lets you close down your comments on past entries which is not a bad solution since most people only comment on current entries. I guess if somebody really needs to comment on something I posted a few weeks ago they can email me. God, I hate spammers.