Another push for sched_ext

> Yet, the users will spam the community mailing lists, because that's the next logical step for them, if the vendor refuses support.

Yep. And that's what $vendors are counting on as it lets them save money on knowledgeable support staff.

(Mind you, user support request to vendors are not necessarily reasonable. After all, you wouldn't expect a company that makes hammers to "support" a customer complaining that the structure they are building keeps falling apart)

> Why should we merge a feature that doesn't benefit the community?

Every feature benefits someone. Unfortunately every feature also brings along costs that rarely fall onto the same someones that are reaping the benefits.

Those costs can be short term ("performance regression under every other workload") or longer term (technical debt, combinatorial complexity, security vulnerabilities with cutsey names, etc)