I am working on it. At this point, I am manually deleting them usually with a day, if I am tied up on other projects.
However, I am trying to get UBB to offer a solution to the problem.
I don't think these are real people.
I use UBB for my forum and don't have any trouble at all. It isn't UBB.
What kind of screening do you have for new members?
I screen all mine personally before I approve them. It looks like you let everyone in who registers.