The thread goes into a bit more detail, but that’s basically it: feature requests get closed and then labeled, with reactji being used to help with priority.
Your open issues are bugs, which you can work on closing.
I found this via some research in the eleventy issue queue 
That tweet is from 2018, lodash doesn’t seem to do this anymore: https://github.com/lodash/lodash/issues
I wonder what the reasons are. It sounded like a great way to better organize issues (especially given the name ‘issues’).
Yeah we might just experiment with this on one of our repos.
I’d like to surface our roadmap and feature ideas a little more and I don’t know if issues are the best place for that.