Marketting spiel incoming. You use Reddit to share link, Twitter to keep up with people, and IRC for real time chat. In all of those cases you are trusting a third party corporation that they aren't keeping you data forever and they won't arbitrarily ban you. You can switch to alternatives like Mastodon or, like, voat but it's really the same problem: now you're just trusting a different server, and being banned still means you lose all your content and new players on the block have to bootstrap up an entire new corpus of content and userbase.
Instead, you could use an Urbit app that does Reddit-ish things, and when a developer makes a Twitter alternative the userbase already exists. Because each user hosts their own content, developers don't have to host servers, and migrating to another Reddit-like app is really just switching to a different UI frontend. Whats more, since it's /your server/, you can integrate with existing 3rd parties: mirror all your posts to actual-Twitter or use Urbit as a client, and gradually migrate over to the decentralized platform without having to overcome market effects.