I'd like to point out that in similar sites (e.g., MathOverflow), users are encouraged to use their real names, and I'd like to propose that for here as well. Since reasons for doing so are so nicely spelled out on their website FAQ, I repeat it here (taken from https://mathoverflow.net/faq#pants):
"We also encourage you to use your real name as your username. In your own enlightened self-interest, realise that participating in blogs, MathOverflow, the arXiv, and mathematical publishing are all forms of advertising for your "brand", even if that’s not your principal purpose (and hopefully it’s not). Since job applications require you to write your real name, you might as well use it everywhere else, too.
Using real names reminds everybody that they are corresponding with real people, and it demonstrates a certain level of personal investment in your MathOverflow identity. If you use a pseudonym and you get into some kind of trouble (e.g. fights in comment threads or spammy-looking posts), the moderators are much less likely to give you the benefit of the doubt."
I'm not sure if this idea already exists somewhere on the site, but if it does not, and if this idea is well received, then it would be good to include something along the lines of the previous paragraph in the registration and/or commitment phase.