I'm the author and maintainer of WebTorrent, StandardJS, and other packages. I joined GitHub Sponsors so I could spend more time maintaining the 100s of projects that I've written over the years and continue developing new projects.
I'm optimistic that the direct call-to-action on GitHub itself will yield much better results than fundraising methods that take place off of GitHub, such as Patreon.
I feel that open source funding should primarily come from companies and not individuals, though of course I'm very grateful to the individuals who support me. The biggest limitation of the current Sponsors implementation is that only individuals can become sponsors. Once there's support for organization sponsors, I expect to see lots more money flowing through the system.