It is a bit more nuanced than that: The way you wrote it makes it sound like someone can make the project proprietary over night. They cannot and I wish GPL p

It is a bit more nuanced than that: The way you wrote it makes it sound like someone can make the project proprietary over night. They cannot and I wish GPL people would stop pretending. Whoever has a copy of the repo or even a snapshot of the source can continue using and developing it under the original license. What one, strong contributor can do is make a proprietary fork and stop contributing towards the original open source one, possibly dumping prices and thereby starving the original project of code and donations.