Roughing the passer

[DrMooreReferee]

Actually, it kinda does matter. Because there could be contact that you might normally allow (a nice legal block, from the front, and not above the shoulders) that you would NOT allow against a passer. The things that I find confusing here is this. Lets say a QB throws an IFP from behind the neutral zone. Theres no roughing, nobody hits him. Lets also say that B declines the penalty. We're still going to spot the ball where he threw that pass. Why? Because we consider him to be a runner, and thats the end of his run. However, by definition he IS a passer.

So, thats where the confusion really lies. And there's no casebook play to clarify this.