I don't mind bronies. I don't even mind when they link to ponies, since I can ignore it. The only thing I dislike about bronies is when they try to connect a joke or comment to the show that clearly had nothing to do with it. For example, a friend of mine made a Facebook comment about being able to run 100 meters and back in no time flat. Hours later there were tons of comments about Rainbow Dash, and all he could do was question everyone's sanity.
But when they just feel like posting about ponies, I don't give a s*** one way or the other. It's the equivalent of me posting something about Doctor Who in my eyes.