Comment by fhd2

Consumers certainly get annoyed if their software is hard to use, has errors, is slow or down. I've run many user tests with arbitrarily selected test subjects, and this part is universal. This is what good software development can fix, or ideally avoid in the first place.

One kinda heart breaking thing I observed was that especially older users wouldn't get mad at the software, but themselves. They thought everybody else is using this just fine, and they're somehow not smart enough. Motivated me to go that extra mile whenever I can.