Welcome Geoff and thank you for your comment. Certainly the goal is that this is a constructive forum where people respect each other, act maturely and make helpful comment - even if that is sometimes to point our why your image is maybe not as strong as you first thought it was. But that is all part of what the learning process is about. And learning is very much what CiC is about.
We are fortunate in that we don't often get people signing up who feel they've got to prove something by behaving in a difficult manner or trying to prove their superior knowledge. They soon 'get-the message' and drift away.
So, it great to have you on board and please do feel able to join in.