There's something of a tradition of REPLs having personalities in lisp. I've seen Common Lisp tools (e.g. slime/sly) and Clojure (e.g. cider) say encouraging things, but Fennel is almost judgemental :)
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Should we incentivise open source contributions more?
"You use feature FOO a lot! You're probably an expert, have you considered helping with FOO issue triage on our bug tracker [link]?"
Encouraging power users to contribute back could certainly help when communities grow.
Really interesting overview of Iron, Jane Street's code review tool: https://youtu.be/MUqvXHEjmus
It makes a compelling argument for tracking diffs over time, nested feature branches, and encouraging reviewers to add their own patches.