To prevent pre-made vote kicking, SE could adopt Blizzard's version of it. If I recall, any number of kick votes among premade members will count as single vote total, which would force the majority vote among the the non-premade members in order to successfully kick. This may solve 'most' of the problems with kicking to get loot, as well as AFKers, where the decision is on the members outside the premade. The only problem lies on a 1-vs-1 situation where, let's say, an alliance/party consist of only two premade groups, where a group with an AFKer will collectively prevent the player from getting kicked.