vocals in trance.....like deeply distureb by Im..
full on basselines a´la gms and friends.
bad remixes.....like the one of astrals "people can fly" terrible.
guitarr riffs in trance....ahhrrrg....
artist that stoped produce psy´n goa trance......ux,slide,darshan,green nuns.....
i cant really say that these things have ruined my psychedelic trance experience,but they sure as hell hasnt made it better.