Disable "discussions" on our repos?

[fjetter]

A while ago we started to point people to https://dask.discourse.group/ for usage related questions. The issue templates for new issues on dask/dask, dask/distributed, etc. provide a link

Nevertheless, some people open "Discussions" on our repos and we have a certain split of questions. Should we disable Discussions on our repos to funnel more users to discourse?

[jakirkham]

Picking one seems reasonable