Maybe we should bring back the "guest books" of the early internet, where you're expected to leave positive feedback if you want to. I'm not sure that general

Maybe we should bring back the "guest books" of the early internet, where you're expected to leave positive feedback if you want to. I'm not sure that general purpose reviews/forums are the right way to address this issue, because those can generate negative feedback as easily as positive and generate additional stress for the maintainer. I think a simple dedicated "you can leave a public thank you message to the maintainer here if you want" text box would do the trick.