Didn't have to show ID at any of the games I went to last season.
Had to collect my ticket at Arsenal in the league Cup for entirely different reasons and that was a complete farce (partly my fault for leaving it too late, partly Brighton's fault for giving completely incorrect advice when I...
I don't think there has to be a "closed shop" for there to be a problem.
If you're the person who logs on to find the last ticket was sold just before you had a chance to look, then it's a problem for you (if there were people shuffling tickets around their friends).