You are giving access to the docker socket (/var/run/docker.sock), so this container can create/edit/remove any container from your system, even add,edit, remove volumes or host path.

I have no idea if you can send modification API commands to a ReadOnly socket. I think you could, in the same way that you can do something with just HTTP-GET. Example: curl --unix-socket /var/run/docker.sock http:/images/json

Doc: https://docs.docker.com/reference/api/engine/version/v1.41/#tag/Container/operation/ContainerInspect

TLDR; from MIT to GPL.

I think that the reason is the same for “why is XMPP mentioned more than IRC?”. IRC has more clients, it’s less resources hungry and simpler than XMPP.

I think that the reason is because it is old-fashione, and it’s clients feel outdated and (native) “lacking features” compared to more popular clients like Discord, WhatsApp, Messenger, Telegram or Signal. 🤷‍♂️

I can imagine my cousins using any of the clients I mentioned before, but not IRC, XMPP, or any protocol from my era. Life and traditions, isn’t it?