Not been recognised personally, but I used to be on one of the big hook-up sites many moons ago. A couple from the city I was living in at the time posted a hot vid of him banging her from behind then turning her around to receive a pretty messy facial, in the days before smartphones and free video editing software to protect one's modesty. I can only assume they did it for the thrill of posting, thinking that their everyday lives would go on as normal. But I recognised them from my local gym and spotted them there a couple of days later. I didn't say anything but they were getting a lot of unwanted attention otherwise from guys who had clearly seen them too. It was only a couple more days before the vid vanished from the site, their profile was hidden and I never saw them at the gym again. I guess they underestimated how many people were online looking for sex...