But a post containing only a judgement of a thread's worth (as useless for example) or a post containing only a judgement of the poster's worth (as useless for example) - is not discussion. (Shambles)

Shambles, please read what you claim to respond to. "This particular idea is useless" is very different from "you are useless". That people here are judging posters' worth is an idee fixe from you that does not get better by repetition. And the thread has its worth in bringing arguments that one particular idea is useless.

Wolfgang