If you look on my profile here it says that I dislike: People with invalid reasons to hating bands/artist. Why? Because almost ALL reasons I've heard about hating a particular band, artist or music genre are invalid.
Example I've been in:
Me: Hey! do you like [artist]?
other guy: NO!!!
Me: Ok. Why?
other guy: [artist] just sucks.
Me: Ok. Well, can you explain why [artist] "sucks".
other guy: Well, Since [band/artist] is a [genre] artist, then [he/she/they] aren't that good.
Me: What's wrong with [genre] music? [genre] speaks the same theories as [another genre] music.
other guy: No, that not true at all.
other guy: They are completely different styles of music.
Me: Styles, yes, but what about the rules of music theory?
other guy: uhhhh..... What?
Me: Music Theory. How are the musical theories between [artist] and [another artist] completely different?
other guy: They just are.
other guy: THEY JUST ARE AND THAT'S THAT!
Me: HOW are they different?
other guy: YOU SUCK!
It's at that point that I win the argument.
Why can't we just say "I'm just not into [band/artist/genre]" rather then just bash the heck out [band/artist/genre]? If I went to a concert, and the artist bashes another artist, regardless if I like or dislike [artist], I won't attend another concert of the criticizing artist.
Just enjoy the music you like without having to bash at someone is all I can say.