I have a unique name IRL, but I never thought using it was a problem because while I did have discussions online, I made a point to not say anything controversial or trollish. If only my own intentions were what mattered, right?
A woman on Buzzfeed didn't think so. She disagreed with me, but disagreeing wasn't enough. She looked up where I worked and sent messages to my company saying that I was saying disgusting things on the internet.
I got called into the HR to notify me about this. I didn't get in trouble, of course, because I never said anything "disgusting".
But it did get me thinking about who would be so petty as to pull real life and real
reputations into an online discussion where my arguement should be my words and not whether I'd stake my job on it.
I don't know about you, but I don't go around my office discussing politics, sex, religion, or any polarizing topics. My opinions on those are something I try to keep separate from my professional relationships. My personality isn't defined by my opinions on topical subjects; I don't find myself to be hypocritical for not announcing my views to everyone I know.
The aforementioned type of person, is someone who doesn't understand this. Someone who can't comprehend that not sharing does not mean lying. Someone who believes this so deeply that they take it upon themselves to "expose the truth" as a selfless act to save others.
This actually sounds a lot like you. I make a point to stay away from people like you.