Did you know you can use an animated GIF as your profile picture or profile header? As long as it's under 2 megabytes you can upload it just like any other profile image.
GIFs may or may not play automatically for you, depending on your settings. You can set this by logging in through your server's website and going to Settings > Auto-play Animated GIFs
⚠️ Do not use rapidly flashing GIFs as these can be dangerous for people with certain neurological conditions such as photosensitive epilepsy.