I can't speak for other posters, but I didn't ask because I don't think non-sex workers can research the subject - the most well known researchers like Teela Sanders, Jane Pitcher, Nick Mai, Rosie Campbell OBE (and so on, and so forth) are not sex workers and have never been to the best of my knowledge at least, and I've met quite a few of them.
I asked because this is a sex worker only forum, the OP had already made a vague post in the Buddy section (which is not permitted for non sex workers) and I believed she was deliberately withholding this information because she didn't want to be challenged. The researchers mentioned above have all come from reputable institutions and there has thus been a very straightforward path to follow should anybody contacting them have had any problems as a result of any involvement with them, and without this we're basically allowing random strangers to contact potentially vulnerable people for reasons and with motives which we don't know and can't prove the credibility of.
Other can post for themselves, but I will say that the martyr stuff is getting really tedious now. If you're really so paranoid and touchy that you think that people disagreeing with a post you've made means they're attacking you, either don't post it at all or be ready to stand by and explain why you hold these views - that's what discussion is for. We don't need to hear about your helmet.