I don't like the idea of getting people to sponsor your open source work, only to 'close source' the incentives to get them to sponsor. In effect, this is just

I don't like the idea of getting people to sponsor your open source work, only to 'close source' the incentives to get them to sponsor. In effect, this is just a paywall/license for good documentation for popular software/libraries. To be clear, making money as a pure open source developer is impossibly hard, and creativity is required. Very few enterprises making millions off OSS send monetary support, so you have to cast a wide net for $2-5 sponsors who are willing to throw the equivalent of a coffee a month to you.