They are one of the most infuriating things for me. But I curious to know why is this a popular pattern in websites. Do people actually stop whatever they were planning to do and watch the video ?
I’ve blocked them on all my devices. But once in a while I see them when I use someone else’s devices and I wonder.
There’s a Wikipedia page about this phenomenon where advertisers started to prefer video in 2015.
Explains exactly what you’re seeing.