Well, I don't know much about legalities since I am not a lawyer and I don't plan on becoming one so I don't think that I could be much of a help on this topic. That may be something you should look up or maybe contact Mojang Studios about, as they might be able to provide a solid answer.
Any one who has banned someone for banning someone for banning someone for banning someone for banning someone for banning someone for banning someone for banning someone etcetera!
People who don't know who made a mod and then complain that they barely got any views, likes, or downloads are banned for not even being happy they got those.