My guess is that university culture changed a lot over the last couple of decades, as well as the mainstream perception of computing technology and the Internet

My guess is that university culture changed a lot over the last couple of decades, as well as the mainstream perception of computing technology and the Internet shifting from a neat science fiction type thing that some of us dreamed about to being completely ubiquitous. Most of the technology that powered the Internet in some form or another came out of the Universities prior to the dot-com boom. If you wanted to do something interesting with computers and networks on a scale that mattered, academia was really your only option. (Yes there were BBSes and AOL, and dial-up Internet in most areas. But in terms of what you could do, those were like driving a golf cart on the autobahn.) Now that the Internet is everywhere and programming as a career path is seemingly as popular as nursing or construction, the direction if the Internet is largely being determined by large companies and governments, not the people (or even the type of people) who built it. I suspect university CS departments probably lost that "wacky misfit club" atmosphere a long time ago. I'm sure the insane-and-rising cost of higher education isn't helping things out either. All that said, lots of Universities do still provide material support for open source software in the form of hosting and mirrors. For example, around half of all Ubuntu and Debian mirrors are universities. The OSU open source lab hosts infrastructure for a variety of projects. I also feel like we can "blame" Github here, since it (and a few other sites/projects like it) have become the de facto place to host source code and collaboration tools. (Whereas in the past it would have been an FTP/HTTP site and a mailing list.)