There are obviously SOME, but 'several thousand' is overstating it. For the Norwich match, by example, the actual (bums on seats) attendance was 27,600 (against 29,400 announced). Impressive figures regardless. Basically, it means that 1 in 11 STHs missed the game. Which in turn extrapolates to each STH missing two games per season - fair enough, frankly.
What is your point?
(Feel free to take that as a specific or general question)
Interesting that, I was wondering what the missing STHs typically amounted to. 1 in 10 or so sounds about right with illness, other commitments etc. Doubt it's any different than any other club. Of that small %, there will be plenty who can't be arsed to pass their tickets on to anyone else so there will always be a couple of thousand empty seats. It's hardly 'fraud', and the ground is a 'sellout' - all tickets sold. It's not that difficult to grasp (but it won't stop endless threads on it)