Allow me to explain:
Pr0st/Kage/Whatever made a shirt with "Bad Dragon Bruisers" on it in the style of a sports team, obviously referencing BD and its Brusier.
BD went full C&D because hurr durr muh copyright.
Then BD went and copied the sports team shirt idea except it is profoundly shit, while displaying said item among Zootopia-like merch.
The only problem with this is that Bad Dragon as a trademark only covers "Adult sexual stimulation aids, namely, artificial penises, artificial vaginas" and nothing else.