To follow up on that video, I think this one is worth a watch: https://youtu.be/cz9ICFDk8Js

Federated social media platforms may always be smaller than the for-profit platforms which use all kinds of tricks to turn people into commodities: tracking users, using targeted advertising, having psychologists on the development team to “gamify” everything, incentivizing people to turn themselves into “content creators” and “influencers”, create and exploit addictive behaviour by having infinite scrolling pages and adjusting content based on “engagement” data.

So Lemmy won’t make you rich - but I think you’re ok with that.