So...
After guy today rejoined the room for 5 times just to kick me out (and finally kicked me out after long 13-9 S&D game), and idea popped out to my mind.
First one.
Make a system where people won't be able to get more kick votes if they rejoin. Let them have that 1 or 2 kick votes, but if they used them both and rejoined the room they should't be able to vote kick again.
Second one.
Make the person who got kicked keep their EXP/GP. Why? Because if cheater/farmer got kicked, it doesn't matter. They will still get banned after certain amount time and their accounts will be gone anyway. But this matters big time for honest and legit players. Their time would't just go into wind because some random butthurt kid decided to kick them. So both butthurt kid and legit players profit.