GitHub issues should not be used by non-technical contributors though (imo)
I really wouldn't want to go back to using a separate to like Jira or Trello.
You can learn so much about what the user experience is from just having them tell you what's wrong. It's a real bummer though: most of the people responding are about as far removed from UX researchers as you get: almost no ability to put themselves in the shoes of others.