I started using the term “opinionated software” a little over 15 years when I was starting a new company. I built what I wanted as a participant and a fan of the sport.
Lots of other people had their opinions on it (“you’re doing it wrong and everyone wants it this way,” “you must have this feature” which barely anyone actually uses… the power users), but I held fast with my opinion (did usability testing to prove the it was easier to achieve the goals to back up my opinion) and I’m glad I did. It changed an industry for the better.
Excellent usability and functional design that achieves a goal better and easier will win people over.
I also built it with an API so that people can build their own versions of it with the same data, because others also have strong opinions, and I whole heartedly respect that. Some interesting things have come from it that are more targeted for specific users and situations. Pretty cool to see what others make.
While I don’t know how opinionated the guys that created Dark Sky were with it, I would guess that it’s a good example. It was different from all the other apps in their category in the way it surfaced information. Their new app is good (not quite as great as the original), but they’ve really spent a lot of time making a really usable and functional system.
Edit: About that same time in my life, I also realized that I no longer just wanted functional, I wanted both functional and form. I wanted well designed functional stuff. Turns out that people like that too.