I suggest that the site could maintain a "jerk-score" and then sort your blocked list by the amount of jerkiness, so that it is obvious to you when you want to add #201 that you know exactly who to unblock?
I wonder though if it might be easier to have a time expiration on blocking. So that when you block someone, you can say "forever", "2 weeks" and such.
Either of these two solutions would help a lot in the world of blocked list maintenance.
I think that the 200 block limit doesn't make sense. If there happens to be more than 200 jerks in this site (there has bound to be), then why should someone get punished? I respect your opinions that think it should be that way, but disagree with it. Thoughts?