Interesting. That image looks correct in the preview viewed from this discussion page, and it looks fine when the post is accessed directly, but it’s having a seizure when seen from the blog view. IE11 just kind of flips out, and Firefox brings up old-fashioned static. I can’t recall seeing anything else like it. Any ideas why that is?
EDIT: Ah, looks like the WordPress scaler. The blog view tries to resize it using http://i0.wp.com/media.boingboing.net/wp-content/uploads/2016/07/itqo_celestial_fireworks_bracelet.gif?fit=600%2C600
(the original being 628x628), and I suppose the problem is that the different frames are all different sizes.