a) can't allow "vote to kick" from the opposing team in a competitive environment. That has obvious abuse written all over it, either intentionally or unintentionally (opposing team is losing or opposing player is legit good but they think he is cheating) b) when you allow vote kicking of "same team only", like CSGO, there is a lot of grief type of harassing where parties of players (like a 3 queue) can vote kick teammates just for general griefing reasons, intentionally deranking, and the like.