Comment by kiplkipl

Any time Facebook's UI is insulted, it's common to see the defence that it's a feature, not a bug, because clearly it works or a competitor would replace them. That time spent improving it is time wasted, because it doesn't make money. I see this as proof that a highly-scalable market doesn't optimise for good, it optimises for good-enough, and there's a lot of potential revenue lost between good and good-enough.