I just didn't think Sourceforge was still running. There was a mass exodus from it about 20 years ago when it became a massive ad farm that started injecting ads into people's tarballs.

It was never as good as freshmeat.net even in its heyday.

> what baffled me is why the author's choice not to move is a problem?

Because Sourceforge is horrible to use and was at one point actively pushing malware? It's pretty obvious tbh.