I don’t think anyone is expecting baseball players to draw rainbows and butterflies around your signature but this is a little ridiculous. You may be on a guaranteed path to the “show” and will probably be a future superstar someday but you could do a little better than that, I hope.
While the world of prospecting is full of creepy old men stalking high school & middle school ball players, all of these cards won’t end up in their hairy, sweat-filled hands. Some of these autographs will ultimately find their way into the collections of your future fans. Do you really want to short-change them like that?