The issue is not someone leaving on 88 minutes, although that too is pointless because it doesn't save you any time in the long run. The issue is people moaning about how expensive tickets are and rightly so and then missing half the game by leaving at half time. Also 23 games, leaving on 88 minutes, is 46 minutes which is an entire half, not including the average 5 minutes added on so that's another 115 minutes which is almost a game and a half!!