No. 1 is simplicity and mass appeal.

It's not intuitive to understand the system, with rc,hp,hive,curation,witness votes and reputation.

And it's not appealing. It took me months to understand how crazy profitable it is to post on hive and then I made the effort to understand the game. By now I find great content like this post wherever I look, but you're sifting through a lot of crap. There is no algorithm helping me pick. It's just throwing everything that got a lot of upvotes in my face. No matter the language. No matter the topic.

I don't care about coins. I don't care about sports results. I don't care about the walk you took with your dog.

There is a big need for a more streamlined userfriendly frontend.