Quite the contrary, I'd redo the tests for RED or OPS in a heartbeat. The fact that require potential invitees to put forth a bit of effort to join generally weeds out the people who aren't going to put in the effort to maintain their account or ratio.
Spent maybe 1 hour reading the training material for both sites. Passed OPS first time, RED second. Maintaining a good standing on either will generally be enough to get you into anything else.
I was a denier for a few years too until I just sucked it up and made an attempt. Couldn't pay me enough to switch back now.