If a therapist told me they avoid snooping online, because they don't want to "desecrate the sacred therapy space" or some such thing, I would trust them even less. Want client trust? Act like a normal person. Stop condescending to everyone.

This scary PsyD has put together a social media policy. I would not interact with this person if you paid me. Illustrates just how convoluted and fraught these relationships are...

http://www.drkkolmes.com/docs/socmed.pdf