Well OP, I think it's a good idea. Calling it a "solution" is a stretch, but it's a good idea. It's predicated on two points which all the naysayers seem to be blatantly ignoring:
1. It should be a very low-cost, low-maintenance effort. If it's not, then it's obviously not going to work and the proposal is moot.
2. People are going to find ways to kill time anyway. This will include running old content.
It seems all of your detractors are dismissing the possibility of #1 outright, or suggesting that protest via unsubscription is the only reasonable solution thus discounting #2.