Here's my take: We're real people. We really talk like this. We have these opinions, and we express ourselves as such. When we need to be profesional, we'll be profesional. Look at the development forums... very profesional. Here, in an open forum, people are going to talk however they feel like talking. I think that our customers (gamers) will feel much better about buying a game where the designers chill, and talk about things, and hang out with them. They know the people they're giving their money to! Can you say that about WoW, or Halo? Nope!
So I believe that things are fine... we'll just have to put a disclaimer, or something. And, just to let you know, both of my kid sisters have read threads on the site, so I can understand people's concerns.
--Chris