Being an open source software maintainer is hard. The following post is geared towards maintainers and not contributors. If you are a new contributor to open source I would stop reading now because I don’t want you to get the wrong idea or discourage you. Tons of patch requests get merged per day, but this is going to focus on the ones that don’t. I’ve talked to maintainers from several different open source projects, mesos, kubernetes, chromium, and they all agree one of the hardest pa...