Unfortunately, that is how one project is being aggressively marketed.
Discussion
I can see how you could or interpret it that way. I like to think that nostr devs like to have fun and get excited about things. We sometimes get hyperbolic.
Some small projects, don't really use much of github. So i guess its somewhat true for them.
I suspect some of the people building GitHub replacements don't really use most of the GitHub features. Which is not a problem for me, but his response was jarring.
GitHub is an enterprise-level application. It's not merely Twitter for sourcecode.