A lot of people, actually. You're there, for instance. So is Shadowhal, Ron Lugge, P5yy, and a whole bunch of other people who's screen names I don't recognize.

Is our Karma King in there?

Maybe I should've added a smiley face to my post

You should hang around in IRC. You'd recognize eetmorsqrls pretty quickly.

Most of those guys aren't around anymore. Multianna and LordKosc were good people too. Multi kept making high quality beta gameplay vids and was probably responsible for quite a lot of people buying the game

Yeah, all those wild party nights!

Except the guy whose name Yarlen spelled wrong Don't remember who it was now And Gauntlet kept his '03' while my 11 got dropped. Woo!

Or are those people part of stardock but decide not to show off on the forums?

Jim ‘Major Stress‘ Morgan - One of creators of the original star trek mod

Alex ‘Annatar‘ Veltchev - One with the most karma

hmm...kinda makes you wonder

You can find beta testers in Stardock game credits going back at least as far as Galactic Civilizations II (and probably further back, but I don't have any of the games loaded right now).  Testers who are exceptionally helpful over the course of the beta are sometimes asked to do extra testing for us to work out harder to find bugs, or provide more detailed feedback.  These testers are sometimes listed in the game credits.

I was a community tester back when Gal Civ 2 was being worked on and got into the credits.  This was months before I even applied for a job here.