<p>I'm actually surprised -- most people have never heard of Trillian (developed by Cerulean Studios), and yet here on CC, I've run into at least three people who have, and use it, myself excluded. It's so much more functional than Aol Instant Messenger is. And that hide option does come in quite handy. =]</p>
<p>I wonder if AOL discourages use of Gaim - it can get revenue through ads through AIM, but it almost certainly cannot get the revenue through Gaim. I suppose it can come through the increased number of people who would log onto their AIM accounts if Gaim is allowed - and then this in turn, encourages people who only have AIM to log in more.</p>