Quote Originally Posted by Ultimatecalibur View Post
After a certain point the majority of players have gotten all the rewards they want from a piece of content which leads to a drop in participation. Only way to really revitalize that content is to add new rewards.
That won't ever happen, there would have to be other things to strive for. They wouldn't be able to keep up with the demand. Maybe a leaderboard, or something else that is required for constant interaction - which would anger people who don't want to do them (they won't ever be able to "win" no matter what they would do though).