One thing I really miss from Reddit is that there's almost always an expert in the comments. And I don't mean a know-it-all, I mean people of the kind "I wrote the paper this article is based on", "I used this exact tool professionally for the last ten years", and of course amazing "Astronomer here". These people come from having much larger user base. I don't want all the people from Reddit here, but I do want more, and these in particular. Of course, if we get these, the others will follow, which will probably be sort of a problem.

Also, it would be have a wider range of people here, now it's very, very much skewed towards IT.