Yes, plainly "tokenadult" is not the name on my birth certificate, but after lurking here a while, I saw that there were quite a few other users who use screen names rather than real names as user names, so I decided to recycle the electrons of a screen name I was already using on two other sites. Even when I use a screen name (which is mandatory on some forums I use, as for example the one where my screen name here originated), I usually make my real-world identity discernible in my user profile on all sites, and some friends recognize me just from my on-line behavior and off-hand references to my real-world life experiences, if they first met me under my real name somewhere else.
On Wikipedia, where I use a distinct screen name different from what I use on all other sites, I for a while was harassed by people who even phoned me in the middle of the night because they didn't like my sourced edits. So I'm somewhat aware of why some people would like to be anonymous online. But on the whole, I figure I should have consistency of online identity, and linkage to my real-world identity, and I think that does provide incentive to comment more responsibly and to be cooperative with community guidelines.