This is pretty much the argument I've been making since the 1980s, starting with my "real names" policy on the Fidonet SF echo (which policy accepted not-legally-recognized use names).

There's a conflict between people who go to conventions to be *themselves* (possibly something they can't do in the rest of their lives), and people who go to conventions for a blow-out weekend and want to *not* associate it with any other part of their life. My sympathies are solidly with the first group, of course.