Lobbies After Queue Dodging
I think that after someone queue dodges (mainly for ranked but might as well be implemented in blind too) you shouldn't be put with anyone from the same lobby on either team. A lot of times in ranked someone will dodge, then we all get put in a game and targetted bans suddenly appear out of nowhere just because a few of them know what we picked last time. To me it seems like a simple thing to fix and I can't see why it hasn't been done already. Plus it'll probably help avoid argument.
There's always the solution to dodge and wait a minute or so but it's a waste of time and kind of unnecessary.