Stack Overflow delivered a little piece of coal to me, today (or I noticed it for the first time today). Animated GIFs as ads. Like, the old-school, flashy-flashy kind:
Here are two deanimated frames:
The ad (sourced from here) flips back and forth a few times before settling on the first frame. This is the only ad I've found that doesn't present the little "like this"/"don't like this" thumbs, possibly related to its GIF nature (in Chrome 31. I can mark it down in IE 11, but I've restrained from doing so, for science).
The thought crossed my mind that this was malware, but I've reproduced this on my locked-down work laptop.
It's really irritating, flashing away while I'm writing an answer. Can we, here and now, say NO! to animated GIF ads?