I was just using an app that competes with airbnb. That the app's code is extraordinarly unreliable was a significant factor in my interactions with others on the app, especially, I gradually realized I couldn't be sure messages were delivered or data was up-to-date.

That influenced some unfortunate interactions with people and meant that no one could be held to their agreements since you never knew if they received the agreements.

So, well, code quality kind of matters. But I suppose you're still right in a sense - currently people buy and use complete crap.