lol. didn't angel list start off as something like this?
it's an itsy bitsy tiny market, even if every cto joined.
personally, the domain sounds pretentious and douchy, and as a cto i would not want to join simply because it sets the wrong impression that "i'm better than you and you are not qualifed to discuss real matters with me - also, as CTO, rest assured I'm only transparent with folks 'at my level', although our company promises transparency to everyone".
also, i could fake those credentials in a heart beat.
just my 2cents, good luck with it though.