That was during the cold war in the 60s and 70s things are different now. I am not sure how different, but they are.

Developing new viruses and deadly diseases that spread too fast to be cured. By enabling low cost sensors to resolve messy data for low cost high precision weapons. By eroding the skillset of humanity so that we just fail in a few generations. By accelerating how we were already killing ourselves.

Here is some advice then: Don’t run a public service until you understand the risks and are capable of protecting yourself and your users. It isn’t as simple as booting up a service for self use. By using Discord they minimised damages to users it would be worse if they lost control of a Discord alternative with RCE exploits.

Self hosting and providing a public service are two very different things.