Usually I only put chat windows on when I am at home - so 7pm onwards GMT. Although I have been chatted at in gmail as that's on all the time.
To be honest until the last week I never used to have chat programs open at all and if I did they were locked down to a few buddies as they are detrimental to getting any damn thing done at all considering how many folks I know online - ahahahah!
Plus I end up staying up until 4am without realising (DON'T I, SHIVA-SAN????? YES, I AM LOOKING AT YOU???!! LOL!).
But I think Messenger is safer on that score than AIM as less folks I know use Messenger.
AIM is like "Danger Zone" for me as I get bombarded with about 10 people the minute I log on and while I'm quite good at multi-tasking I'm not *that* good. I often worry I will bitch to the wrong perspon about the wrong thing after a sticky incident a few years back where I *almost* accidentally told a guy I thought he was hot - ahahah!.
For Great Stalking Justice most people just Google me. I have no lookie-likies, I am a unique and special snowflake :) The "incognito" horse bolted years ago at around the time when my shame went missing.
- For Great Fangirl Justice!