Definitely, although maybe for a different reason. I enjoy the segregation of my interests in different social networks. The less crossover there is, the better. Maybe paradoxically, I've found that I can't be truly open without being able to segregate parts of my social experience from one another. Hacker News is good for my tech discussion, Google+ for talking to a certain group of friends, Facebook for another, reddit for complaining about reddit, etc. Once you introduce another variable into the mix like, say, family or coworkers, what I say changes dramatically.

It isn't so much me censoring myself to appear more palatable to other groups insomuch as it is attempting to cultivate different personas with different people which, now that I'm typing it out, seems a bit duplicitous, but I think most people would agree that they act different with their family and their friends.

I am, however, going off on a bit of a tangent. I didn't sign up to Facebook in order to see which companies people liked. I signed up, well, because of peer pressure, but also because I wanted to be able to keep in touch with people I don't see every day. As Facebook trended more and more away from that, I've used Facebook less.

I like my online life to be able to be divided into discrete, modular chunks.