the downside is no anonymity. The upside is, no astroturf, no bots, no nothing. Or maybe not 'none' but 'greatly reduced'.
That's actually a community I might be enthused about participating in. Sort of like HN, where a lot of people use their real names. The problem is how you bootstrap it. People need a good carrot to embrace the stick.
Disclaimer, I paid them $5 dollars for an account last year when they restarted, and never did anything with it.