Wikiwand was the greatest Wikipedia add-on ever. Now they totally screwed it up with the most intrusive, useless ads I've seen in a long time. If only they were even remotely related to the content at hand, but no, they're totally random and add no value at all. Also, they're seemingly immune to ad blockers, because as soon as you pick up the elements to block, the whole page UI gets messed up. Disgusting.
Guys, you need revenue? There are better ways, I'm sure.