No one disagrees that IRC is just a barebones of a system.
Yes, Discord is centralized. All voice traffic through discord is decrypted server-side where vocal-tone analysis and speech-to-text transcription is done.
> too poor to own more than one computing device
The key attribute of Alt Tech users are asking for is decentralization (no DNS or IP block to take down) packaged in a way that both nix users and normie users can use.
Retroshare is the closest thing to uncensored social media that is not subject to a single internet service provider or domain name service provider getting cucked. Retroshare has the best concept but the implementation needs to be redone for production use.