I get what people are saying, but it doesn't mean people have to stay in a category. I have heard from several people that they do not even come to the psychotherapy forum because it is "clicky" and they don't feel comfortable for reasons x, y ,z....

There could be an overall with sub-forums, like the romantic transference sub-forum. While I agree about the differences issue, the differences also may cause problems and people might find safety in similar situations (trauma survivors for example).

Another example is the age distribution. In some of the other forums that focus on mental health issues, there is a much larger age distribution than what seems to be present here. There is probably a reason for that. It might be younger geneation are not in therapy (although if you look at the other forums they seem to be) or it might be they can't relate to the life situations presented here.
Just some examples.

It seems that the response will be no. Could be "clustering" or could be the general sentiment... no way to ever know.