I still do not understand why should users conceal their being online? Are they scared of getting personal messages? I do not even consider becoming a "hidden user".
getting personal messages is no problem for me, get them all the time. can't speak for the rest though.
right now there are three "seen" online users and two "hidden" users
Sometimes I hide and sometimes I do not. There is no real reason I guess I do it because it is one of the features and I like to try everything once in awhile.
I hope all of you have noticed that I quit being a hidden user. Now I login and logout when I remember which is a hassle, but I just want you to be happy!