There are threads in the Diablo III Forums about players exploiting the way vote kick mechanics work in Blizzard's action/RPG sequel to get other players killed, which is a particular problem in Hardcore, where character death is permanent. A post by Blizzard responds to this situation saying this unintended form of PvP griefiing will be addressed ASAP:

Ehhh. While the advice "don't play in Hardcore public games" may be valid in a number of situations, we recognize that this is a legitimate issue for Hardcore players and want to address it ASAP -- ideally in a way that doesn't impact co-op play (or impacts it as minimally as possible).

Right now, we're looking to remove the 10-second movement lockout whenever a Vote Kick is passed from both Hardcore and Normal modes. While we realize this solution may allow players to exploit the Vote Kick function to avoid death, it's not a very reliable survival technique and we feel that it's a better alternative than players losing a character they've invested a lot of time into due to griefing. We'll definitely be keeping on an eye on this, though, and will consider other solutions if necessary.

I don't know yet if this is something that can be addressed via hotfix; it may be a fix that we need to implement with a client-side patch. We're still working out the details, and I'll provide an update once there's any more info to share.