Some sites (Fandom Wikis) are unbearable with ads. Sure, you could pay to remove them, but only because it’s so infuriating to navigate the content when it has multiple ads—some that follow you—INSIDE the content of the articles.
Autoplaying videos, side banners, and scrolling ads are the worst and actively make me want to avoid the sites unless adblock is on.
Very cool technological achievement, but eye-batteries don’t necessarily sound all that safe, non-corrosive/toxic or not, it’s still a constant reaction to create and store electricity in a very vulnerable location.