The best thing to do is just install them all and see what works.
All I get now are messages from "professional girls" and guys trying to get naked photos of me. I remember when I first discovered the casual encounters section on craigslist. So many women posting ads and replying to the ads I was posting. It's something more relevant than just a social media account. If you want to avoid them, just find a site you like and pay for membership.
I thought it would last forever but unfortunately, the party was spoiled. I assure you, you won't find many deceivers on paid sites.
I've joined many dating sites and hookup sites in hopes of finding casual encounters. Once you've paid, the messages suddenly stop and the replies you send to the previous messages you got are never replied to. Don't look for sites like craigslist, just use craigslist and hope for the best. There was a time to use Myspace but when Facebook came to the scene we all switched. Because that's what was hot at the time and that's where the people flocked. The allure of craigslist's casual encounters is the anonymity it provides its posters.
A site like craigslist personals that's great and doesn't cost anything is Tinder. Replying to an ad is even more anonymous seeing that all one needs is a simple email address to contact another member and set up a hookup.
I spent a LOT of time on Pure and was disappointed in the end.