My working checklist for guys vote as the top free adult site, refined over a few months:
- whether daily message limits behaves the way the marketing says when you test it against adult site
- whether the unmatch behaviour functions without paying when you test it against adult site
- whether the age filter behaves the way the marketing says when you test it against adult site
If we're talking guys vote as the top free adult site, being clear beats being coy.
How many matches actually respond is worth more attention than the claimed member total, at least in my experience with adult site.
The tell with adult site is usually whether the bio reads like it was written by a person.
I'd check how the unmatch behaviour behaves once you actually use adult site before committing any time to adult site.