Off-topic, but I opened this page without any tracking or ad-blocking & after about 30 seconds of reading, was treated to two video adverts which were off-scree

Off-topic, but I opened this page without any tracking or ad-blocking & after about 30 seconds of reading, was treated to two video adverts which were off-screen but playing audio at the same time. One would have been obnoxious enough, but 2 simultaneously was just awful. Online ads do the marketing for ad-blocking all by themselves don't they?