It's a tradeoff. There are both good and bad things with anonymity and real name policies:

1. Anonymity: people can express themselves without anxiety, but that gives space to assholes to be assholes (barring other control mechanisms).

2. Real names: lots of people will hold back due to anxiety that what they say may come back to haunt them years later [1]. The more timid assholes will inhibit themselves as well, but not all assholes are timid. The main people who will participate (asshole and non-asshole) will have the personality types that DGAF.

In short: anonymity is somewhat more favorable to assholes, but also more favorable to good discussion. I also prefer it, because I'm the kind of person who will just shut up in a deanonymized space.

[1] In ways they may have never even imagined at the time.