Some Reddit and Twitter users had pretty convincing suggestions that Coinbase was responsible for much of the high fees with their unbatched, high volume transactions:
Thanks to the ccommunity putting pressure on Coinbase to move to Segwit, this should keep bitcoin fees down for a while.
Can't wait for lightning.
I hadn't seen this yet. Thanks for sharing! That is interesting indeed. It should also mean that on the next run up, fees shouldn't get nearly as high.