As I said, quitting is her decision, we should not fight on it.
WINE may be used to run PS on Linux, and can be used to make sigs and walls. As good as in SF, as good as in VC.
VC is dedicated to windows as SF is. Their activity is centered around customizing windows.
So using Linux is not the right excuse for someone to quit SF and continue in VC. This must be something else. As she does not want to tell, I will not want to know. I will just say that the expressed excuse is a lame one.