For example, it's used as a kind of internal bookmarking system. I don't necessarily star a repo because I think it has good code, but maybe a good idea or something related to something I'm interested in developing.
I want to comment on something that seems important to me. In the third world, in countries where the internet arrived much later and where money was much scarcer, the effect of qmodem was quite long lasting and profitable for the tech savvy community. A PC and a modem were the support for many of the adventures and beginnings in computer science and in general to satisfy that insatiable curiosity for the computer revolution. Engineers working in big companies and using the resources of these and local volunteers installed BBS with Walnut Creek cds and other shareware CDs and gave access for the first time to that universe that we now take as evident and accessible from our phones. Without qmodem I would still be waiting for my copy of unarc!.
In my personal case, I want to also thank your father for pointing us thru it's company name to the book and movie "the forbin project" :-). In our present of promises of supercomputing AIs, maybe we should all read the book or watch the movie.