Blacklisting and recent spam

Ya know, I believe we might block a good amount of the spam comments that have hit us over the last couple of months by blocking this phrase:

"ite. Thank"

That'll cover all the "good site. Thanks." and "great site. Thank you." and numerous variations that I've been getting hit with (and I assume y'all have been too).

That's a space between the period and the capital T, if that matters.

I don't know enough about the blacklist to add this myself, so someone else could add this if it'll help.