It's not about Penning it is about how much people use/trust that ignorant pressure stat that PFF made up to spice up their OL ratings....
Most people that have played organized tackle football understand that defensive players cross the line of scrimmage... It is part of the game!
It only matters when it affects a play otherwise it doesn't matter.
PFF has taken this crossing of the line of scrimmage & made it into something that it shouldn't be...
It has caused bad feeling towards players that is somewhat unfair to them...
I don't mean to clash with you about this...