Developers: Should give us even more tools to filter out and promote domains.
Admins: Should market their platform as "where we talk about original content" instead of "where original content origines from".
Moderators: Should encourage original content in form of blog posts.
Users: Should get in the habit of writing their knowledge in posts that they own. Don't have a blog? There is a federated website called Write.as, this can be utilised greatly.
I agree with you. I think it wasn't clear in my original post, so let me clarify. The threadiverse is awesome, comment sections are important for us to parse, debunk, or amplify information. What I'd like to see more of is that links to informative blogs that people control, instead of posts that are hosted only on link aggregators. SEO and longevity of blogs is a whole another 'net culture issue; people must keep linkrot in mind while producing content and take precautions for their longevity (there are lots of tools for that but I won't get into detail).
Twitter Runs Ads for Disney, Microsoft, NBA Alongside Neo-Nazi Videos (gizmodo.com)
Ads from household-name brands and nonprofits are appearing beside clips of a film blaming Jews for causing World War II.
OC There is a lesson to be learned here
TL;DR: We should bring blogs (self-publishing) back instead of putting all our knowledge into other people's websites....