I'm getting a spam storm right about now so I've turned on CAPCHA or whatever that's called which makes you enter six bytes after a comment post. I'd rather have than than require everyone to use Typekey, but having a Typekey account will help.
I've also changed the number of comments per page up to 50 so that you don't have to scroll so much, and the auto close on comments has been extended to a year.
As soon as my domains stop getting spammed, I'll turn Captcha off and we should be back to normal. Sorry for the inconvenience.
I do wish I had an invective switch as well, but you all are only going to be as civilized as you decide.
UPDATE: I am requiring TypeKey from this point forward. On the whole, people who contribute most already are or easily could become TypeKey users.