To answer your questions, the club understandably aren't too forthcoming even to us about the work they do in monitoring ticket sales but I know they do have people dealing with these issues and it would be foolish to dismiss their figures of 25-30% of tickets changing hands prior to the change. It was clearly something they WERE concerned about so they do give a shit.
The only way people will catch up is if we ditch most of the hitoric points, and only go on more recent ones. So a 3 or 5 year rolling system. I think it just goes on the previous season at Liverpool. However there's the danger that the genuine hardcore support, who have been going to 90% or more of the games for many years, could be impacted so it's one the club and City Matters have to handle very carefully if we ever plan to implement this.
Each ticket they send out in the post costs money, whether that's to hospitality or OSC's, although I suspect the original benefit for introducing the OSC applications all those years ago was to save time and effort, when we had fewer branches and less restriction on the numbers of travelling fans.