Earlier quoted context omitted.
> Like in this case, what exactly is "going on" that requires this visual delay? Nothing. It's a technical demonstration. The delay is also overemphasized to make the difference more apparent. > The this is the fanciness that detracts from solving the major flaw of these sliders: you can't easily tell whether it's off or on That's because they don't represent anything. Toggles don't always represent on or off, either…
> even "feel" does matter to most users And I think most users would prefer software that does stuff instantly. Attaching little animations to everything is just silly and distracting. It only happens because someone had nothing better to do but still had to look busy. These things almost universally degrade the interface and I've yet to see the actual benefit of them, aside from the fact that they draw attention to…
A good animation is one you do not notice. Subtlety that succeeds in loading off its feedback payload in your brain without exposing the transmission mechanism to the conscious level of perception.
Chances are you are only complaining about the subset of animations that failed to stay under that threshold. Yes, slow, elaborate animations are bad.