It would make sense to me for the subscriber server to have a different restriction list than the public server.  A subscriber has more at stake by posting junk than someone who just created an account.  I doubt it would be that much work creating a separate ACL.  However, I realize that anandtech is not the only user of FuseTalk and I have no idea how many things are on Zuni's TODO list.  Although, personally I don't think it is much of a loss for AOL users to be blocked.  I don't know anyone highly technical who can stand using AOL even for a short period of time.
If you have to use AOL, there are ways around the AOL block.  I guess the idea is to block those people who can't figure out how to get around it.
Please do not PM asking how to do it, unless you are a moderator or someone of authority wondering what I am talking about.  However, I am sure the moderators know the ways around it.