Again, the fallacy of that thinking is that catchers are only getting plowed when they are actually blocking the plate. That's not the case. I showed it with Posey, but that's jsut one example. When this topic came up this offseason, I read a story that included a 3-4 minute compilation of vicious home plate collisions. I'd say on anywhere from a 25% to 1/3 of them, the catcher was not actually blocking the plate. Similar to Posey, they were in the vicinity trying to catch the ball and the runner plowed them anyway. And in additional cases outside of that 25-30%, some of them were standing/hovering over home but not blocking it, where there was room to slide underneath the tag and get to the plate.
I just think runners approach with the mindset that even if the catcher is not currently in the way, he's going to put himself there as soon as he gets the ball. So just like the Posey collision, they come in high and plow anyway, oftentimes when it doesn't turn out to be "necessary". It's not that they are looking to hurt someone, but if you're anticipating a collision, then it's hard to change that approach at the last instant.
[This message has been edited by DannyDuberstein (edited 12/12/2013 5:05p).]