Fully decentralized, no censorship at the core of the system.

You pay a moderator to send you a filtered feed that filters out illegal content.

Then you upvote/downvote what you like and don't like. A local system looks at what other people upvoted and downvoted. People who upvoted/downvoted like you gain credibility people who upvoted/downvoted opposite you gain negative credibility. Then you get shown the content with the most credibility. And a little like pagerank, the credibility propagates, so people upvoted by others with high credibility will also have high credibility.

So, anyone can post anything to any subforum.

But in principle if you upvote/downvote posts based on whether they are appropriate to that subforum, then you'll only see posts that are appropriate for every subforum, because other users who upvote/downvote like you will also downvote off topic posts.

So you end up with the internet you vote for. If you downvote everyone that disagrees with you, you'll be in an echochamber. If you upvote does who disagree with you while making a good faith effort to bring up solid points, and you'll find yourself in an internet full of interesting and varied viewpoints.

You could also create different profile depending on what mood you're in.

Maybe you feel like reading meme so you use your memes profile where you only upvote funny memes and downvote everything else.

Or you're more feeling like serious discussions and you don't want to see meme so you use your serious discussions profile.