Lately for me, it's aggression, if i'm raising/reraising & I miss the flop, I have noticed a tendency of either not betting enough with my continuations bets or not betting at all. It seems to be a pattern i have developed. Although to be fair to myself, people just don't lay down there Ace-rags or mid-pairs, with over cards on the flop. It is insane the amount of people i see continue to call reraises with mid-pairs with 2 overs to their pair on the flop.. Just seems like people don't care these days.