I think the intent is that it belongs in “Ideas”, giving everyone a chance to be a part of the discussion. We don’t have a direct parallel to python-dev in Discourse, and there is some discussion here about why that is. It seems like the intent is for Ideas to mirror python-ideas, and Users to sort of mirror python-list and python-dev. I don’t really understand that and feel like we need a Development category, but I’m not a Discourse admin, maybe @ambv can weigh in more?
With regards to the proposal itself, I don’t really have an opinion, sorry!