Rochelle chose AM.com over MW + I believe Lola and Kwevus had other reasons to leave, I won't name them.
For many people real life concerns will always take precedence over a forum.
You're at uni as well and you're on here often. I think many people use their computer to do tasks and get on here whilst to relax a bit.
Oh, and 'real life concerns', getting drunk in some bar?