according to @Geoffers747’s Q&A thread, it looks like it was from this stream (@1:45:35)
“We’re gonna have some sort of built-in functionality to highlight mods which are particularly awesome to install them, but keeping some sort of mod marketplace with things you’d expect with ratings, reviews, etc … whatever we’ll do it will work as well for none-steam customers.”
p.s. i think i’m going to create a “live stream question bank discussion” thread, to fold all the extraneous comments there… would hate to lose them as we progress…