Yes, wanting to control what information about yourself is released into the general public is clearly the hallmark of nefarious intention. Self determination is evil and corporations should should feel free to do what they like with your information, will ye nil ye.
Will this stop trolling? It won't.
Will this open posters to the possibilities of brand new levels of harassment? It will.
That harassment won't develop for everyone, and might not develop for anyone, but it's still a risk without reward.
In fact, this can't stop trolling unless it opens you to harassment. That is the very meaning of the so called accountability this will bring: don't troll lest you be hassled in game, for the club of the mob hangs over your every post. If it's not affecting you in game, how can it stop trolling? The two effects are interdependent, claiming you can have one without the other simply fails as an argument.
So all are to be stripped naked and thrown into the crowd, and we hope only the deserving will be kicked in the nuts... Yeah, right.