NOTE: I sent this again because it didn't seem to get e-mailed (for whatever reason, sorry if you get it twice.)
Given the lack of commonality, it may not make much sense to add to the mail spam lists, since it would be an extra 2000+ records that would probably not get hits on mail.
The MT-Blacklist doesn't seem to update too frequently (the last new record was from 8/29) and has about 2000 records. Matthew's list was pretty sparse so far. So I'm still pondering things.
Jeff,
I could be totally wrong... but I suspect that the lack of commonality may be more due to either the MT-blacklist not being updated as frequently or because the MT-blacklist may not be updated as extensively.
A good test may be to "Google" some more frequently found SURBL-blocked domains which are not on the MT-blacklist along with the phrase "moveable type" ...you might find a lot of blog-comment spam which should have been on the MT-blacklist and is already in SURBL.
Moreover, blog spam is a huge issue and this presents a great opportunity for SURBL to make a big splash, all for a good purpose. If you get the "big-time" bloggers to write SURBL, you will soon find SURBL on the front page of cnn or foxnews, etc.
Rob McEwen