I read an piece on the Seahawks record. The only reason it is considered "the record" is because they invited Guinness to be there. It was set up by a Seahawks fan club so I consider it a bit "fake". Had they not been trying to set the record they likely would not have done so. These college stadiums are getting this loud out of pure team passion and are not trying to set records. These numbers ARE legit and not just urban legend. Clemson has seen 130 a few times in the past few years. I was at the BC game and it was absolutely insane.
Not trying to take away from how loud the Seahawks got the place but it was set up to be that way(likely with a big announcement before the game, etc) vs being spontaneous so it loses something to me because of that fact.