RE: Delegation Issue
Steemit should function less like Twitter. It already replicates entirely too much of its functionality from the user experience of the normal user.
There is a fire hose of content. It is difficult to find content which you are interested in. If you find a source of content which you like, there's no guarantee that new content will be similar. If you are a creator, there's no guarantee that you can get your work in front of people who are interested in seeing work like yours. You spend a lot of time telling the system what sort of things that you like, but the system never changes its behavior as regards what it does as a result of you doing all that telling. The fire hoses undifferentiated, there's no way to cluster content for presentation, no way to filter aside from picking some people that you follow.
For the vast majority of the Steemit experience, it is exactly like Twitter – except for the fact that you can have properly, nicely threaded comments underneath posts which give conversations a sense of context, a sense of place, and allow lines of reasoning. It's a pity that actually reading those comments is annoying, frustrating, and can't even match the experience provided by low-end USENET readers from the early 90s.
Main Stream Twitter
One of the problems is simply that Steem is so much smaller than Twitter, etc. And keep in mind that Facebook, etc, were forced upon humans in a wide variety of ways. They had a lot of help making it go main stream.
UseNET
What is Usenet? Is this Usenet? I'm reading about it on Wikipedia. It appears to be peer to peer to some extent. It appears to be focused on the news. According to Wikipedia, it says: Usenet (/ˈjuːznɛt/) is a worldwide distributed discussion system available on computers. So, I can see an analogy inside. I think I understand your comparison between Steem and Usenet. Yeah, you might be right concerning the User Interface (UI) within Steemit, that it can be annoying, difficult, etc, to read comments like you said. Busy.org might be a little better in some ways.
Mea Omnia
I was a web designer for a website called Mea Omnia (MeaOmnia.com) around 2011-2013. Mea Omnia means My Everything in Latin. So, we were trying to make Mea Omnia into something like Facebook, Steemit, YouTube, Reddit, Twitter, etc, combined. I say that to say that I know some of it might be tough to do, and yet I am guessing that Steemit could probably do better in regards to finding ways to give users more customization options which MySpace had. That is what we were focused on with Mea Omnia, trying to find ways to give users options. We ended up abandoning that Mea Omnia project. So, I'm no computer expert and yet even I get some of it. I don't really know a lot of code, but I know how to Google it and put things together sometimes.
Facebook Groups
If Steem does not already have groups or communities, then perhaps that would help. I thought I heard some people talking about how that new feature would be launching with HF21. I will be looking around to see whatever happened to that.