Hey, I know it's just a small comment on HN so I don't know the whole picture and you very well may already know/do this, but people who tend to have free time to just pump out side projects without worrying about work tend to be already-privileged people.

I get what you mean about not even really needing the project to work, just show that you have an idea and wanna work on it, yadda yadda, but I think you'll eliminate some good candidates and hard workers if you see a lack of side projects as a lack of devotion or work ethic.