I swear, I have spent so much time figuring out what to put in my ad blocker to make his face stop smirking out at me from every Wikipedia page that I'd rather bill him for my time than make a donation. (They are being "clever" with background images, making it hard to track down the URLs, and they change the pathnames all the time.)

Block these:

.wikipedia.org/w/index.php\?title=Special:BannerController
.wikimedia.org/centralnotice
.wikimedia.org/.*/foundation/
.wikimedia.org/.*/Fundraising