Sounds like something M$ would do. Same thing with Windows, it has too
iChat, AIM or an open source software are way better.
You should be objective.
Actually, when you think about it, GMail, Orkut and similar beta products do (GMail still does, but everyone gets 100 invites each last time I checked) require invites. And both of the ones I mentioned are by Google.
I don't see you saying anything about them being evil.
iChat is not open-source, and neither is AIM. In fact, with the exception for Jabber, many IM clients do not use their own protocol... the software may be open-source, but the protocol is not. AIM is ad-supported as well, so that's one reason it's free.