"I hate when people say they like the same thing as me. Hey guys, I'm posting something about how I like Band A. I don't give a fucking shit if you also like them, just leave me alone. I hate people that compliment my tastes."
I turned it around for you, but its the same idea. If you are going to post your opinion (on something as subjective as music) in a public forum, then you open yourself up to comments. You presumably told us all that you like Band A because you expect other people to, but if everyone hates that band, then thats your own fault. Go sit in your closet by yourself and talk about how good that band is if you don't want input.