My experience is with RMen. And I only hired once, so keep that in mind. I do a lot of looking and thinking though. Twice blocked from providers by just looking. First time, looked at a provider 2x before being blocked. The second time, after looking at a provider a dozen times. There was no communication with either. I take this kind of behavior, a red flag. And anything that indicates or states, "you're wasting my time", "time wasters".
Any indication of easily angered is a red flag for me. I find easy going, mellow guys a real turn on! LOL.
My one hire was really great! 19 year-old blond bodybuilder, very handsome. He did indicate respectful in his bio and he was very respectful and tactful, even though English wasn't his primary language.