Feedback I just sent to Google:
I personally am happy to use my real name, but many people are not. Yes, this is open for abuse, but that's what reporting and blocking people is for - to report abuse. Google is showing a real disregard for the privacy of its users, as well as a real misunderstanding of what a pseudonym is and does.
For many people a pseudonym is really and truly the name they are known by, either in real life, on the internet, or both. For many more people a pseudonym is a matter of personal safety. Does it conform to "community standards" that a victim of stalking or domestic violence must reveal their full name to the world? Please rethink this policy.
As far as I'm concerned, it is a well established standard in the internet community that many (if not most) people, for a variety of reasons, are known by one or more pseudonyms, please change your terms of service to reflect this.