Should we care if pitchers use pine tar?

Last night the Yankees got demolished by the Mariners, 10-1, but the only thing fans were talking about after the game was Yusei Kikuchi’s apparent use of pin
Bronx Pinstripes - A New York Yankees Community for the Fans, by the Fans

Indians' Trevor Bauer talks pine tar, spin rate, experiments and more

A Sticky Situation: Why MLB Should Legalize Pine Tar and Other Sticky Substances That Help Pitchers With Grip – The Flintridge Press

The dirt on doctoring baseballs

Pine Tar for Baseball: Why Players are Using It?

Should Pine Tar Be Legal for Pitchers?, News, Scores, Highlights, Stats, and Rumors

What the MLB's Foreign-Substance Crackdown Could Mean for Pitchers - The Ringer

The History of Pine Tar in Baseball

Should Pine Tar Be Legal For Pitchers?, by The Caught Looking Show, Caught Looking

Michael Pineda strikes out seven with pine tar-like substance on hand in Yankees win over Red Sox – New York Daily News

Rubbing Mud: Rubbing Not-Really-Mud - Baseball ProspectusBaseball Prospectus

pine tar on

Why It Is Still a Big Deal That Pitchers Use Pine Tar

I've been watching John Means pitch and it appears he is digging into his glove for some pine tar. Watch til the end where his glove literally resists when he pulls his

Lance Lynn: Pine tar not universal — but what's that smudge?

MLB cracking down on pitchers using foreign substances