Drives me nuts whenever I reach the bottom of a scroll window and I can feel the network call happening before stuff starts loading again. It's 8ms from me to the local CDN and I've got gigabit, but it feels like every dang site is slow as hell these days.
i feel that way about most web design principles these days. For a brief window it seemed like every website had automatic handling for dark/light mode based on system preference, or at least a toggle, but I feel like that's gone the way of the dodo. Or popups, consent banners, images loading and reflowing an entire article...
I was talking message logs for example; is that trivial? I.e. what do you mean exactly? Do you notice the difference between 1 line of text being added every 16.6ms vs 3 lines every 50ms? And if so is that a problem?