The moderators here actually had a very informative post back in 2000, if I'm not mistaken, about the difficulties they encountered when attempting to deal with AOL users who abused this forum. AOL, unlike most other ISPs, was very uncooperative in addressing the net abuse issue. If I remember correctly, the entire issue began with GUTB and his little gang of sympathizers who literally ran amok here.
When posting the information, the mods were very apologetic about the ban. However, AOL left them with little choice. Quite frankly, AOL wouldn't assist with the problem. Looking at AOL's respective size and competence, one shouldn't find that very hard to believe.