@Maryz
wtf did LBE say?
pm's welcome 
I'm concerned as well about the topics with a lot of unanswered (or almost unanswered threads) in them.
Child and Adolescent Mental Health is an example - you could hang around there a lot desperately looking for a reply, whereas posting in mh or teenagers would find a few people.
She said: "Well I'm sure we'd all like to help, Helen.
But what do we get in return?
Eh Eh?
I mean, can we say Mitmoo without getting deleted?"
So I deleted her 
But agree re topics. We are looking at it.
Tis tricky, though: when loads of folks ask for new ones, we do like to oblige...