I feel like my biggest problem with the death of Flash (as far as FA is concerned) is FA's paltry limit of 10mb file upload limit. With Flash, you could squeeze quite a bit of animated content (perhaps even with sound if you so desire!) into 10mb. as for other options: you can't get sound with GIF, and even if you could, the quality drops like a rock when you resize it, plus it can quickly increase in filesize if the animation is longer than a few seconds. WEBM is nice on browsers, but not many media players seem to support it (at least, that I'm aware of), and fewer have seamless looping, which you need for those 1-second loop WEBMs... And then there's MP4... yeah, good luck with getting ANYTHING other than one of those 1-or-2-second loops uploaded within that 10mb limit...