Farcaster and Lens are much better alternatives than Bluesky. Not only you host your own data but you can choose your frontend and permissionlessly use the protocol backend. Web3 is the way to go for social media.
>To sign up, users must pay a $5 sign-up fee, meant to prevent the creation of spam accounts. Further, users can only post a limited number of “casts” on Farcaster apps, which are tied to packages called storage units. Storage units, which go for $5 a piece, grant a user 5,000 casts, 2,500 reactions, and 2,500 links or photo posts within a one-year period.