Cardinal fan asking "Does pine tar on a pitcher's hand really matter?" and is it actually illegal?

YES it does matter if you can grip the ball better your curve ball,slider breaks more, any foreign sub. is illegal, JIM L and TLR both have been in this game forever they know all the tricks and just turn the other cheek so to say.And if there player gets caught they act like they didnt know what was going on.Im with you CARDS in 5 they will be tough to beat if they win tonight.(I had predicted CARDS in 7 but you never know)