I'm sure there are scammers who try to remain anonymous for that reason.

Honest people have plenty of reasons to remain anonymous too though. Look at the IRS scandal. Even if you do nothing wrong, they can make your life a living hell. Just because they don't like you or your political views.

Even if you're the type who trusts government officials (hard for me to understand), look up Brett Kimberlin. He's a private citizen who goes around harassing and suing bloggers who bring up his well-known, criminal past as the "Speedway Bomber." This costs people so much time, money and energy, that the prudent thing to do is not bring it up. There's also evidence that he's engaged in "swatting" -- making false police reports that end up with SWAT teams being sent to the house of someone he doesn't like.

Bitcoiners are very unpopular in some circles. Do you really feel secure that no one willing to "swat" you or sue you will ever read something you wrote and decide they really don't like it?

Even if you feel safe now, what if the BTC/USD goes through another spike or two? There's the obvious possibility of online strangers tracking you down in real life and trying to coerce you to give them money.