Any person with any sort of educated intellect especially in an industry you have a passionate hobby in would be able to have a logical idea. I don't think you need to work in game development to have a basic understanding. We are talking about members of a gaming forum, so obviously their interest extends beyond casually plating a few games.
There's countless gaming interviews, docos, videos of a variety of games that show inside game studios and game development. Its hard to believe that if someone loves games enough to join a gaming forum, they would of seen something like that. I'm convinced some of the comments on here are from kids or ppl trolling against the game.