While I could make all sorts of technical points, like how HN's interface is little different from trn I used in the 1990s, or how I dislike tinkering (as Godel_unicode commented), I'll point out one that's not so technical.
I am detail oriented, which contributes to the quality of the software I develop. That level of attention to detail extends to other areas. For example, I read all of the license agreements I'm told that I have to assent to. This makes it really hard for me to agree to all of the automatic software updates, which update the license agreement, so I disable updates until I have the time to read the new license.
(As an aside, OmniGroup has the best proprietary license I've read, and I've commended them for it. And I've complained to ORCId that they claim their signup takes only seconds, which means they don't expect people to read their license.)
So one reason I prefer FOSS is that I don't to read the #%^#$^ licenses.
If I switch to the Android ecosystem, and sign up to Google's app store, I expect have to read pages of legalese - which I don't care to do.
I understand that most people are not this way. I hope you understand that some people are not like you.