@gsuberland @tsrberry @baldur Also, related to the 'user surveys' point - it's surprisingly helpful to just enter your project name into a search engine every once in a while, and read every blog post, Reddit thread, and rant you come across. Those tend to be *full* of things that never made it into 'properly filed' issues, and give a good impression of the general atmosphere around your project, because people tend to speak more freely and directly.

Of course that does mean that you should refrain from responding to them unless you are absolutely 100% certain that you can do so non-confrontationally, because seeking out confrontation with people talking in their own spaces is (deservedly) a very quick trip to the trash pile. Better to just take notes and work on fixing their complaints in the background.

(Bonus points: you can do this one as an 'unaffiliated' contributor with no formal power within the project. Whereas a proper user survey, although it can have better coverage, tends to require speaking formally for the project.)