I did not tell my Ts about PC too much but my first T had an issue about discussing my therapy with others and sometimes about my seeking help elsewhere. I thought it was completely inappropriate and counterproductive, mostly coming from his wanting to be omnipotent or something. Unfortunately he was not helpful though and just made demands. My own opinion is that it depends how someone uses a resource like PC. I had periods with this forum (and also another one in the past) where it became clear to me that I was not using them constructively, much more as a distraction and escape from truly dealing with important things. I closed my accounts on both forums for that reason more than once because it felt like they had become more like an addiction/compulsion and excessive. I don't feel like that at all currently at all, mostly because I am not neglecting my true needs, so no concerns. I personally prefer varied feedback and perspectives rather than relying on a single one or just a few, so a place like this can be very useful for me and also entertaining, given that I do not use it to substitute and escape other things.