If this does actually succeed... It has rather large ramifications for a fair number of forums, especially smaller ones. I'm a person who watches
anime, and visits anime-related forums. Most of them have some users using names with partial or full titles of various anime-related things, at least some of which are registered trademarks.
It will be quite a large problem for almost anyone running a forum if this actually goes anywhere. (Although it would be exceedingly idiotic if the person who ran the forum actually was responsible for the users choice of username...)