"Zero" seems like a bit much! There's a link to trademark policy as archived by the Wayback Machine. It indeed seems correct that they added "usernames" to the policy without updating the date on it.

The rest of it is generally consistent with what's been reported about this elsewhere, including on /r/KotakuInAction. But I'm not going to point you at each individual piece of evidence when there are things literally linked in the article that you didn't see.