Well, it already is, to a degree. But whereas Facebook has no content curation, Medium does, and it can make a huge difference to writers. Stories I wrote that got picked up by the editorial team have significantly more views than those that didn’t. I think local markets — and by extension writers — deserve that kind of service.
I would pay for that. I would support my community. I would also like to pay to be able to write in either language without having to worry that a portion of my followers might find some of my stories confusing or inaccessible. That’s a service I would pay for.