As a new member to this site, instead of assuming why a member chose to leave, why not wonder why a lot of the members have been part of the community for years? There is a lot more than meets the eye here. It takes time to really get to know the members, who they are and what they are about. She was a long-time member and chose to keep the reason for leaving to herself. It could be any number of things.
Ugly took the time to answer your inquiry as to whether or not this member had already left. He is a long time member who actually adds quite a lot to the threads. You really have to give the site a chance instead of jumping to conclusions and making rash judgements.