I never stopped using it, but people generally don't understand how it works though, they expect to drop in and join a conversation immediately and if nobody talks they leave.
In Jersey they started up a regular lan event with irc channel, most of the people who attend are <20, when they first starting coming into the channel, saying "Hello?" and about 30 seconds later leaving the channel.
Now they idle there like the rest of us and understand it's pretty much like a real-time forum with the topic being whatever is currently being talked about!
It's like being able to talk with friends text based instantly, without having to physcially call them up or arrange some sort of conference, it's just there...
My machine is on 24/7 connected to it, if I had a smart phone it probably would be too (just like people do on social sites).