Fellow brony, beware. Edit: Just for context, Hasbro has made only one infringement claims on the word Brony, specifically on the self-print merchandising site Zazzle. While the headline may be an over-reaction, claiming the word Brony as copyrighted could lead to Brony OC being targeted alongside creators like JanAnimations in C&D petitions.
Read more about the case over at Horse News.