Half baked idea: A decentralized and properly anonymized (at the protocol level) service intended for long-form articles. Employ cryptographic primitives to allow association of a single article with one or more identities at any time after publication. (I suspect such a system would just end up getting abused, but who knows?)
The downside is that as a reader you wouldn’t be able to follow your favorite authors anymore.
Say, you always write like Yoda speaks, "Great you are." Then the AI would change it to, "You are great."
I know, I know, it's a tall order.
Consider the usage of semi-anonymous accounts on HN or Reddit or wherever. There's some risk of deanonymization depending on usage style and how determined the attacker is, but it's still quite different from openly publishing things in a manner that links back to you directly.
The issue for me is that (for an anonymous blog) once I decide to publish something to it the article becomes permanently and publicly linked to all the others as well. This means that I can never change my mind in the future without simultaneously changing my mind about all the other content published there. It also means that if I ever slip up (say on a non-anonymous HN account) and reveal that I'm the author then I've inadvertently and publicly tied the entire blog to myself (not just that one article).
Any time bits leave your computer it would be wise to assume that they're out in the world for good. Especially for anything with a distributed architecture, presumably all you have control over is whether your personal box continues distributing it. I suppose you could set a "don't distribute" flag and hope that other hosts choose to honor it ...
Consider all the issues that Reddit and HN have with spam and other sorts of abuse. Then again, BitTorrent and IPFS seem to work well enough. At a minimum, I suspect that issues will tend to crop up anywhere a search or other curation mechanism exists that can potentially be gamed in order to gain an audience.
All the social problems, such as the underlying reasons for wanting or needing anonymity in the first place, remain.
And people will slip up and make mistakes. A lot.