Velle

(Seconding the Mejibray love, although I know  it’s an acquired taste. Still miss them so bad though.)
 
Gallo. I’ve tried their music, didn’t like it. I’ve seen them live, didn’t like it. I don’t really like anything about them tbh, just not my thing. There’s more, but this is a big one that comes to mind since there’s just no escaping it on my timeline LOL

Early SID was pretty good

not quite what OP meant probably since i don't actually dislike the music, but i often can't stand listening to early 12012 (and a bunch of other UCP bands) just because their production physically hurts my ears

.

Far east dizain, not only for the music but also their name is stupid. The raid, the vocalist makes me feel irrational anger. 
Anything with mashiro in it +1.
Versailles, boring and over produced. 
All the currently active girl bands, they produce the most uninspired music, unfortunately. 

I like deluhi and leda but cant stand far east dizain because of the vocalist who ruins every song for me despite me liking the instrumental

D and lynch.  It's the same issue with both bands; almost all their songs sound the same to me.  I don't think they're awful but I can't listen to more than one songs by these bands without getting super bored 

.

I can't stand 3/4 of the new vk bands that debuts every year. Most of new bands just suck. (and mejibray is good)

I second the hate for most colorful bands. Can't stand them, especially An Cafe. I also can't stand X Japan. Their music isn't terrible, but their fans treat them like the second coming of jesus when in reality they sound just like any other western 80's metal band. This triggers a special kind of annoyance whenever I hear them. Also I hate Versailles and anything Kamijo does. 
 

Mejibray. I mean... they're just horrible and don't want to disband.

Anything that's super colorful and poppy I usually find annoying, in terms of specific bands tho I'm not sure. 

Source: JaME
LINE-UP:
Vocal: ?? ?? (Mahiro Kurosaki) {EX-MADARA}
Guitar: ?? ?? (Mitsuki Sakai) {EX-????? (Kurara Zeroshiki)}
Guitar: ?? ?? (Takemasa Kujou) {EX-????? (Kurara Zeroshiki)}
Bass: ?? ?? (Hiyori Isshiki)
Drums: ?? ?? (Junji Tokai) {EX-??? (The Piass)}
DISCOGRAPHY:
(2008.03.25) ?????Shigami Sakura?
(2008.05.20) ?????????????ANOTHER SIDE ?Kaijou Ban??
(2008.05.20) ?????????????ANOTHER SIDE ?Ryuutsuu Ban??
(2008.07.02) ???????-2nd Press-?ANOTHER SIDE -2nd Press-?
(2008.09.12) ??????????????Misekake no Ame to Jikomanzoku no Muchi?
(2008.10.29) ????????Saigo no Koi/Murasaki Shoku?
(2008.11.26) ?????Shuugetsuheika?
(2009.01.17) ???Watashi?
(2009.03.02) ????Sakuragarami?
(2009.05.06) ????????Shuku Chiru Boku no Ao?
(2009.05.15) ??????????Chimimouryou no Chouryoubakko?
(2009.05.15) ????Oni Yuugi?
(2009.10.14) Shock Edge 2009?Omnibus?
(2009.10.21) ????Tsuki no Hime?
(2010.01.27) ?????Meikyou Shisui?
(2010.06.23) ??? ?Mina Sakura?
OHP
Myspace
_____________________
I just had to add this band here. They are a really underrated though I'm happy because you don't see fangirls spamming their shoutboxes with "Kawaii" etc. If you haven't checked them out then what are you waiting for?

Thank you!
 
Nightmare, Screw, and X Japan. I need to refind all my old favourites.
what are yours?

yoooooooo nice to have you here

besides obvious stuff like dir en grey and gazette my current faves are Kizu, Dimlim, Dadaroma, Razor, RShitei, Munou na Lucid, and Mamireta