That depends on the community, if there is a mature group of people playing these aren't really big issues. Not that it's going to fix everything, but when I play games with these features they seem to help more than they are abused.
Vote kicks rarely seen to work because the rest of the players don't know what is going on. A vote starts and you think "wait what, what did they do" even if someone says "they were cheating" most people playing wouldn't have seen it and have no idea if this is true.