@plainoldme,
Do you honestly think people take the time to do this? What do you think their motivations may be?
I say things on this board that I don't talk about much in my day to day life, mainly because most of the people I know are not interested. There are a few friends whom I talk politics with, but not many. Most everyone I know understands that I'm an atheist and my problems with pretty much all organized religion. They are not interested in having these discussions with me anymore, and really, neither am I.
So, in that sense, I present a different side of myself to this board than I do to my everyday interactions. I don't think that should be a problem or a surprise, most all of us do that, I'm sure.