[deno]

That's just tuning parameters, there's nothing groundbreaking there. The title should be something more like:

Proposal: Sane defaults for blog commenting system

Still, commenting (if at all) should be very specific to character of the site commented upon. Like, for example, do you enable replying and threading? That's something that's very dependant on community dynamic.

Personally I think you should leave commenting and discussion for more ‘local’ communities — like Facebook, Reddit, Twitter, etc. Internet's just too big to aggregate all people's opinions on your site. And you can gain some more visiblity that way, too.