DockerHub used to be one offering that made them some cash. This is now being commoditized by major cloud providers.
I am a strong believer that open source infrastructure companies are extremely difficult to make work. Once you get enough market share and exposure AWS will just take your open source software and wrap their own service. Examples include MongoDB and Elasticsearch, though both went public and are successful. I just wonder as a purely business move if open source infrastructure software is really the way to go.
Couchbase comes to mind here as well. How are they doing? They have been around for quite some time as well.
Maybe Docker should copy the successful business model of bash or ssh.
Can someone explain this? I assume it's a joke but I don't know enough
It's a joke. But it goes to the point that companies founded on open source are in a precarious place