How vote kick can be unfair/abused (real story):
- Running The Aery using lvling roulette as a WAR ilvl125
- Ran all dungeon until last boss without any death or problems just reeeeally slow AF (nobody says a word until that moment)
- We die first time because dps dont manage to kill the purple circle that lifts off and kills a player... second time during Nidhogg add phase
- Healer starts saying tank is undergeared that's why we're dying during ADD PHASE
- I turn on ACT and parser and don't say a word because who cares let's just kill this boss
- I realize that both DPS are doing same damage as my WAR... in tank stance... healer is doing 0.0 dps
- We die again
- Running again to face boss I realize I get vote kicked

So in the end about an hour lost for almost no xp and got kicked for unfair reasons. Learned that I'm too naive and a 'good guy' trying to give the other players an opportunity, next time is vote kick first 5 mins someone sucks.