Can I use an animated GIF for my profile photo?
Yes. Your profile photo or logo can me an animated GIF, a transparent GIF (static or animated), PNG with or without transparent/alpha (semi-transparent) regions or a JPEG (.jpg or .jpeg).
All logo images should be square (i.e., height and width should be the same). If you are using a transparent GIF, make sure that it is no bigger than 160x160 pixels. Any logo/profile image than is larger than 160x160 pixels will be scaled down and no longer be animated.
When displayed on your profile page, your logo/profile photo will be displayed in a circlular region. So anything outside this circle will not be visible.
See https://my360shop.com/pp2/ for an example of a logo with a transparent animated GIF.