Suggesting edits. Similar to the Quora model, where you curate the edits on your posts.
That would let native English speakers help out non-native speakers too.
I started a discussion about this in the moderators channel a few days ago.
This leads to the next suggestion: an indication of who is a moderator.
I suggested something similar here
Yeah, I like that, that'll probably be much easier to implement!
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.