Regarding the #1 deal, back in the day if you were national (US) champ, you ran a regular #1 on your ski for racing and the world champ ran #1 on a black background. So, if he's the national champ, then he earned the right to run/wear #1 if he wants.
The problem is this site is mostly recreational riders and he's a competitor, a highly driven one I'd say. It doesn't fit in with most people's idea of riding here, so just let him do his thing, watch his videos, etc, but don't jump on the dogpile of bashing someone for doing what he loves to do.
BTW, I don't believe he came here and posted that on the X, so it's not like he's complaining to you about it or you are forced to read it.