Until March 23, I wasn't blocking many ads. A few certainly, but each time I blocked the scAmmy ads my earnings and CTR tanked. Since March 23, my visitors seem savvier than ever. Blocking the scammy ads has raised both earnings and CTR.
It's amazing how your audience can change if your rankings slip even one or two positions.
As of today, my traffic is down about 20% but income as almost back to where it was. Needless to say, I was very busy last week ;)