One girl that I met in real life told her safe call person that she met me from a dating site, which I kinda hated because, frankly, dating sites are the last refuge for people who can't do anything in real life. She didn't mention it was a kink-related one of course. I hated it because if I ended up meeting her roomate, I'd be a guy from a dating site. Yuck. But it does help to explain WHY so many precautions are being taken, at least.
People feel more comfortable once they finally meet in person. That's why vanilla encounters have such a high rate of success. You can usually tell if someone is a weirdo off the bat. And of course, before people come flying in with: "They could seem normal until they have you tied up1!!!!!" There might be someone who appears all normal but is secretly a serial killer.
If you happen to run into her, then you were probably fated to die. Sorry, luck was against you!