Well not every1 has OP u know :O Plus, every1 cant use commandblocks, only creativemode people can.. also, meep can take lag.
~ @AwesomeAdoGamer
To suggest command block games don't really make much sense, it should be a lot easier to just suggest a mingame, as our techs are good enough to make a minigame plugin that works a bit better than commandblocks as it work without redstone. And no, lag is the worst thing a server can get.
But I think I might have misunderstood your suggestion a bit, are you suggesting to let everyone make their own minigames in creative or something, or just the server staff? Because if it's only the server staff suggesting the mini game is simpler, as command block games aren't really ideal for larger servers.