I’m pretty sure it won’t. We’re talking 99th percentile versus (ummm) 99th percentile. Considering the user’s screenname, if s/he does not get into Stanford, I highly doubt it was because of a 1490 vs a 1510. However, since the user is giving no further information about the his/her credentials, and considering that top schools evaluate holistically, we’re all just throwing darts at a board.