I expect most of the "glory hunters" are fans like myself that can't get to home games often for one reason or another, but do go now and again. A lot of these "glory hunters" probably live a fair distance from St Marys and do a lot of away games.
The Wallsall game is a big game so it's bound to attract all the occasional fans in one go, but they're not "glory hunters" - they are Saints fans. If they were "glory hunters" they'd support Man Utd.