I think this is partially true, but insist there is more to it than that. Careful, clear writing is hard even for native speakers, and good writing serves as a

I think this is partially true, but insist there is more to it than that. Careful, clear writing is hard even for native speakers, and good writing serves as a proof-of-work: answers that have had more work put into them are a signal that more work has been done, i.e higher quality answers. We're quickly losing that signal.