Using FPs late wasn't gaming the system, it was an official policy that Disney employed. There have been many (probably hundreds) of Disers that reported being told by CMs directly that the FPs were good all day. Heck, I had heard CMs make announcements at attractions that said people could use their FPs any time before the end of the day.
So the conspiracy theories about the "coincidence" of people using FPs late are nothing but sour grapes. Trust me, if late FPs had truly been messing with Disney's crowd control system, they would have begun enforcing return times almost immediately. But instead they figured out that they would need more precisely timed crowd control for the Next-Gen system they have been working to roll out, so the first step toward that was enforcing the previously unenforced return times on FP.
And for everyone wringing their hands over people on this board showing too much angst over the proposed changes, perhaps you could realize that this is a discussion board where people will voice concerns and help each other figure out solutions (especially when Disney throws a curveball). If you do not wish to read discussions about the new system or people's concerns, simply move on to other threads.