I see this a lot on the sites I frequent in the UK.
The only way I've seen single males truly "successful" is by joining in, being themselves and not giving up after rejection.
There are lots out there who think all they have to do is contact a million people and they're "in". It doesn't work like that
In my experience, people have to get to know each other in order to be "successful" longterm and that involves effort.
Or go to a few swinging clubs and do it that way.
Personally I prefer to swing with my friends, rather than random strangers....unless I'm in a club so I meet people socially before anything swinging wise happens. It's also a safety thing, coming from a single female