Since there's no official policy on animated signatures on the ebhawk community site, you may wish to avoid these images based on personal preference.
I've put together a simple guide on how to block specific signatures without being forced to turn all signatures off. Hopefully this is of use to someone!
1. Download an Adblock Plus extension for your browser. You can either go to the Adblock Plus site here: https://adblockplus.org/ or you can install directly for Chrome here.
2. Once you've got Adblock Plus added to your browser, simply right click on the image you want to block, and select "Block element", and then "Add" on the little popup window. This will prevent the image from being shown as long as you keep Adblock Plus enabled on this website.
3. If you have accidentally added an element to be blocked, or would like to remove one, click on the ABP icon by your address bar, then click on Options.
4. On the new page that opens, click on the Filters tab, and remove the image you no longer want to block.
5. Happy browsing!