I have 7 LS and probably chat in like 3-4 of them every day. My FC is pretty intimate so sometimes there are not a ton of people on at once unless it is an event time so many LS fill that void.

My LSes have a lot of social chatter, help and advice asked for/given, lots of "Need 1 more for ___".

I'd have to say 90% of my chat log is LS. I'm in mumble with FC people anyway.