There was a statistic somewhere that men with HIV are 30 to 40% more likely to get cancer because of their compromised immune systems. This applies even if they're on meds and are undetectable.
I've said before that it feels like a lot of escorts have read some guide about what you're supposed to do because I've experienced the goodbye kiss repeatedly (sometimes even a hug+ a kiss) with a number of different escorts.
I honestly don't remember how I found the forum. It was probably through googling an escort and seeing a thread from here in the search results.
The forum slowly grows by hobbyists coming across it in one form or another. I don't know how you'd pursue an aggressive growth strategy, or why for that matter. The last thing you want is to attract the attention of the feds and have the site shut down like backpage and rentboy.