Thanks for getting in touch regarding this. I've looked into this and looking back to 2017, it seems reports_editing was an old (now invalid) scope that was tied to the Analytics API. This scope is not available to be enabled anymore I understand.
The reports publishing API and the Reports resource is available to Shopify Advanced and Shopify Plus merchants - (it's the write_reports scope) It's used for creating reports (there's some docs here of how to add this scope via Oauth).
As an aside, we're aware that many merchants/partners are requesting a dedicated Analytics API - there is a proper API in mind there ultimately, and there has been discussion/work towards it. I can't offer a timeframe of when this would be delivered, but any updates would be communicated via the Shopify Community Forums and also via our Developer Changelog. I hope that at least clears up any confusion!
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