Resurgence in ARAM dodges

First I'd like to gather information: is anyone else seeing a lot more dodges lately? It's possible I've just hit an MMR where it's more common or something, but I've been seeing an average of three dodges a game (though there have been seven while I was writing this...) and it's getting almost as annoying as pre-queue days.

Second, if it's not just me, what can we do about it? I suspect the problem is people dodging and hopping onto other accounts personally, but I can't say for sure. I believe Riot has the ability to detect when that happens, but so far hasn't done anything that publicly uses that information that I'm aware of, so I'm not totally hopeful they'd target it specifically here... so what can we do? Increased timers? Re-roll penalties? There has to be something. The more it happens the more it's going to keep happening.