Players who just pop in for a second can still issue
kick votes. If they pop out again quickly, they're
almost immune against a counter-kick.
Countermeasures: introduce a minimal waiting period
a) you can vote
b) before you can issue a vote
And players shouldn't be allowed to pop in and out at
will. As long as the client is still there, the player
ID should be kept around for a while.
And kick votes should work independent of whether the
player who it was originally intended for is still