Comment by summerlight

Many developers with good will actually tried that and gave up due to lots of problems. This is not just bad ROI but also a legal minefield. Engineers usually cannot argue against this kind of risks. Enforcing this will unlikely work in higher courts. Though something like open sourcing protocols for server reimplementation may have some chances.

While I see problems in the law but the spirit is reasonable. We need to push toward this direction. At least there should be difficult economical trade-off for publishers when they decide to shut down the game. Nowadays, some random executive just takes look into some excel, see some games have declining revenue and decides to "simplify the business" without much thoughts. This has to stop.