I'm working on an open-source "decentralized" app that allows viewing and posting text messages.

Posts are stored in the blockchain and not censurable to some extent. Fetching of the blockchain data is done through polling of public apis (blockfrost or koios). Posting a message requires a Cardano transaction which implies fees but this would also prevent spam.

Private messages between users are encrypted with a public key generated from each user wallet signature.

The whole app is hosted on github pages and open source: https://github.com/alucao/decon

Any feedback or thoughts are welcomed.