Tinder-based recruitment for psychology studies

Problem: I recall seeing walls of signs posted by researchers asking for people's participation in a study in return for money or the chance to win money. Researchers have to find people fitting specific physical and/or mental descriptions to participate in these research studies (I have seen descriptions ranging from "younger than 25", to "have/had a cocaine addiction", to "clinically diagnosed with major depressive disorder"). 

Solution Proposed: If your age group is 18-30 ish, a bot could be easily designed (or integrated!) into dating/hookup sites (Tinder, Bumble, Grindr, etc.) that creates a profile with the study in the description and relevant pictures. This would reach the eyes of many people, and if the community were chosen correctly, the chance of finding the right people would be much higher than randomly posted papers with slips cut out and hoping the right people read them.