It's $1050, not $1500. I'm interested in two projects on Patreon (bcachefs and Matrix) and both projects are not getting nearly enough to be self-funded, so this raises the question if this model even works for Open Source. So far any advanced technology seems to be funded by some big corporation and it's not very good. But, I guess, users just don't care about good inner workings, they care about things they personally enjoy (cartoons, etc), so funding those inner workings is still an open question.
I think it's an issue with the marketing of it as well, I recently got notice that some of the most important open source projects I use have a patron page they depend on, yet didn't show it on github, only on their home page under donate. Same as with Kickstarter, if you want funds, you have to properly and visibly ask for it!
I donated a lot to git-annex because he did it right, showing everywhere that you could sponsor the development.
