Not to mention 50 different variants of the same annoying loud video ad, so that even when you block it, you have to do it 49 more times to actually stop seeing it.
And the problem with the same irrelevant and animated ad repeated 5 times on the same webpage
I had the same experience with shitty playback buffering every few seconds on popular videos that should be cached on a nearby cdn, and then saw lots of articles about it and then boom a week later everything was back to normal