the thing is that unless you've been extremely careful where you post from and what you post law enforcement already know who you are.
The only 'benefit' to enforcing 'real names' to be used online is so that people who get bullied for saying dumb shit can look you up to fuck with your life.
I’m open minded on real names. We should definitely ban “cartoon avatar coupled with cutesy or “funny” name and behaves like an absolute tool” though.