The remark was a general one, about scientific forums. Here an open letter I have written to https://www.physicsforums.com/ in protest against a violation of their own rules, which resulted in banning me. Here is what an admin wrote recently here:
"Well, then, this will be put in speculations and you will limit your discussion of this subject to this thread, and this thread alone."
So my "some move them into subforums for cranks" holds here too, and "this thread alone" is not much spac