I havn't seriously used ICQ in about 5 years, but I never saw any hyphens at the time. Perhaps it's a new thing.

What sorts of people (still) use ICQ? I always prefered it to AIM, but there wasn't much hope when I was keeping ICQ around for talking to one person, and we both had other conversations in AIM going.

Eventually, most of the features of ICQ got added to AIM (well, adium). However, I still miss ICQ's offline messaging.

Matthew