Hell, even on THIS site my persona may vary based upon topic. I tend to be completely honest on here, which judging from the things people take time out of their busy day to quote me on and reply to makes me come off as some or all of the following:
Nihilistic
Naive
Ignorant
Absurdist
Idealistic
Jaded
Trying to be "Cute" or "funny"
A Sony Fangirl/Fanboy
A Nintendo Fangirl/Fanboy
and an idiot
*Takes a bow*
But on other sites such as Facebook I'm very much the version of me that I present to my family and friends. Most of them don't know the real me, or would even understand 10% of the topics we discuss on this site. I occasionally post something that is of keen interest to me on my wall, and generally no one gives a shit. I'm okay with that, because I all I get from them is whatever George Takei is posting, or some article about LGBT rights, or a ton of meme pictures for the most part.
The only other site I post stuff on, though I frequent several regularly, is the PWI forum. It obviously has a really narrow focus of topics based upon the game, and I watch my language and am actually downright bubbly at times.
Because that is who my character is and who my friends know me as.
Here, I can say pretty much anything I want. I can use whatever colorful language I want to within reason, and as long as I don't attack someone personally I can continue to enjoy that freedom. Not that I would, I think trolling/flaming to be inexcusable wastes of time. Actively antagonizing a stranger for your own amusement, rather than just having a differing opinion and getting on with your life strikes me truly pathetic. I mean I understand that people joke around, and thats different. I'm talking about REALLY going after someone. Which gets you banned obviously.
Which is part of the reason I'm so PG on that other forum. Getting banned there might get me banned from the game I've played for 4 years lol