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I would be happy if it looked like 1995. It was actually decentralized.

IRC, FTP, and SMTP are all decentralized. That's the good part about them.

If IRC is decentralised, then so is Slack and all it's clones. Except they're not.

Cool, I look forward to connecting to your Slack server.

Self hosted and centralised are two separate concepts. IRC is very much a centralised service even if you can host your own servers. Matrix would be a better example of a decentralised protocol.

> IRC is very much a centralised service even if you can host your own servers

IRC being an open protocol and having the option to run your own servers is what makes it decentralized. The various "major" IRC networks (EFnet, Freenode etc) are decentralized too, since they are isolated networks.

Slack offer neither of these - they own all servers, the protocol and controls the API (which is not the same as an open protocol).

Not only that, but it didn't require nearly as much bandwidth. AFAIK, most "modern" web services today would not be usable over a dial-up speed connection.

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