Scott Crain, AOL 'Spamdinista,' wrote in with an update, and to make what's going on crystal clear.
There are two machines that have been added to ORBS on AOL's networks, at my request. The two machines are a new system in place to allow us to keep spammers from using outbound SMTP connections to spam the rest of the net with junk. Alan Brown, the maintainer of ORBS and I correspond frequently on a couple mailing lists we both frequent, and he asked if it would be ok if I had him place these two machines in ORBS, to which I agreed.
Basically, the two machines that are there are the external gateway for a percentage of AOL members using their TCP connectivity to send mail out of AOL without using the AOL client. It's no different than blocking AOL's dialup IP's (*.ipt.aol.com) as the MAPS DUL does currently.
In other words, this is a good thing. I'm sure I'm not the only one who doesn't like spam from AOL, and this looks like a step in the right direction.