The thing is, I don’t really want BLF to turn into a dumping ground for buried toxic garbage. Even if no humans see it, the bots do, and that will attract more spammers. It could also get us in trouble with our web host, which prohibits certain types of content, as almost all web hosts do.

The “advantage” of users posting prohibited stuff in the public forum is that the Report or Spam buttons (depending on the nature of the post) will eventually result in the post being automatically removed and even blocking the user account, depending on quite a few factors in the algorithm. That probably wouldn’t be possible with an “About Me” page.

I’m not definitively writing off your suggestion, just mentioning the other issues that would have to be taken into account apart from the purely technical implementation.