....uhhhh, you might want to look into why Covington got kicked out of a D1 school and ended up rooming with Jon Jones at ICCC.
Additionally, he's getting the desired reaction from his shtick. There's nothing "unfair" about it. Though I don't understand why so many fans and fighters alike are stupid enough to take the bait and publicly insult him back.
I've never seen anybody disparage his fighting ability besides the complaints about his style being boring, which is something that all dominant wrestlers get.