This recent push is probably to support someone’s promotion. That’s where stupid corporate moves mostly come from.

Previously Google’s attitude was something like “adblocker users are cynics and don’t buy stuff anyway, so why bother showing them ads? Save the ad impression for a user who is more impressionable.”

Even with CPM ads, the advertiser prefers that they spend their budget on users who are actually open to being swayed by the ad. Adblocker users are saying up front that they won’t be. It’s bad for the advertiser to spend their budget on people who hate ads so much they go out of their way to block them.