Like most, I stick to what I know - Depression, Social/General, Relationships, Health Support... If I ever get back into therapy, I'll probably go back into Psychotherapy...
I avoid the Grief & Loss space because, well, a) I'm kind of morbid and b) I have a different view of death & the afterlife, and I know that if I tried offering my own version of comfort to someone in need, it would only hurt, confuse or anger them - or possibly do all three. I also avoid the 'rooms' for the various types of disorders that I don't have, and I avoid the Substance Abuse thread because I took my 12 steps right back into the liquor store... I'm a functioning part-time drunk