Question
 

why does everyone say if someone likes something that they don't, they say something stupid such as "you have a horrible taste in etc. etc."

maybe the person who you think has a horrible taste thinks you have a horrible taste. nothing is better than the other, it is all a matter of opinion.

give it some thought.

Yeah thats what I said awhile aog baout people flaming Antago and saying "your opinion doesnt matter and is stupid"
by saying that you believe that when you say their opinion doesnt matter it doesnt matter, so therefore you acknowledge that other people can say the same thing too you and your opinion doesnt amtter either, you can only say someone opinion is stupid if you are their friend.