the proper way to do it is simply to utilize a public data store (aka blockchain technology). A technology which after a decade became quite mature and cost effective.

The problem with the platform monopolies like Reddit/FB/Twitter is structural. They all use private databases that only they can access. The alternative, TD.win style islands, suffer from a lack of network effect and therefore the big guys have a critical advantage.

Public data stores solve it! Anyone can write, and anyone can read. So the islands can interoperate in a seamless way for the end user, and generate a network effect, in a similar way email does.

From all the online services we use every day, the only one that can be described as a public online service - is email. Everything else is proprietary crap. You can access the email network from many different domains - but they all form a single, interconnected network.

Email barely survived due to spam and fishing, exactly because it did NOT utilize a public data store (simply since the technology didn't exist at the time). If it did, every email address would become a public profile, and there probably wouldn't be a facebook today, at least not in its current devilish form.

Having public data stores that can be accessed from any number of domains also solves the censorship problem - because every site can have its own content policy, and users can choose, or migrate, between sites.

I believe that the future of online discourse and social media would be purely based on public data stores. It also offers the advantage of being able to transfer dollars as easy as it is transfer bits - which is key for creating sustainable gateways.

Why should you believe me? I was the founder of Metacafe (was 2nd to YT) and I've been in the blockchain space full time since 2011, built Bancor, and currently working on deweb.io