(Long, attempt at humor, you can skip if you want.)
Dave, I agree, but it's even worse.
You need almost an "A-team" of the worst people in the world to game with to playtest. And when done, you have to store of them is only the proper, safe, manner, for the safety of the general populace:
The Rules Lawyer: Everything is legal somehow here. Notices that the scenarios never really say you play on a 4x 6 map, and proposes using missile ships on a 10x14 board. One misplaced prepositional phrase can justify the annexation of Poland to this guy. Matter of fact, you've gotta do it, that's what Rule X.2.12.j.7 says, right? (Proper storage method: clerk for defense at The Hague tribunals).
The Statistician: Grinds numbers upon numbers until he finds the absolute optimal numeric choice, and then beats everyone unconscious with it and only it. Considers Markov Chains in statistics a fundamental human right. Sleeps with a Mathematica or Maple handbook. (Proper storage method: Accountancy.)
The Cheesemeister: Builds fleets that no one else would reasonably build, just to see if they are viable. Occasionally runs across one ship that is individually uninteresting but is absolutely gross if you take nothing else. How about fighting a 10-war battle against 40 or so G'Kariths and their E-mines templating the entire table? Has considered making tiny, tiny miniatures that mount on pins to abuse the base size rule ... and did it, just to see how bad it could get. (Proper storage method: Unemployed, in a small dank apartment. It takes a long time to make all those 1mm x 1mm G'Kariths and paint them well.)
The Theorist: Has played this thing more times than you can count, probably mostly against himself. Because of 45 degree turns, has actually memorized the square root of 2 out to 3 places, just to be sure. Is trying to design a way of recording ACTA moves so he can publish a opening theory guide on the "Recon Run" scenario that reads just like a chess book. May consider the sun a mortal enemy. (Proper storage method: Software tester .... hey, wait, that's me!)
The Odious Opponent: Plays to annoy. Isn't there to actually play the game as designed, but to find some other way to win that takes all fun out of the experience whatsoever. Tries to turn games into something they're not. Craves alternate victory conditions that have nothing to do with the core game system. Doesn't just kill campaigns, but stensils kill marks of them on the side of his beat-up Ford Fiesta. May not have showered in days. (Proper storage method: Polar Weather Station, where the chance of accidental human interaction is nil.)
The Secretary: Can stomach playing these other folks and is willing to actually write up playtest reports of the most recent gaming abuse visited at the table. Actually is willing to remember what happened at 5:30 last night without wanting to kill any other team members. (Proper storage method: priest, monk, Dhali Lama).