User blog comment:DaNASCAT/Technical Update: September 9, 2015/@comment-25801460-20150910214518/@comment-1824272-20150911043950

I just want to add something: earlier in the replies, MichiRecRoom, you claimed that there's no security risk that an image could cause. There actually is; images are files just like other documents or javascript, and they can hold malware within them if they're edited with the right tools. Uploading images to Wikia is the safest bet, because they'll be locally stored and if someone tries to change them you'll know and be able to revert as well as block the person. With external links, you don't have any control.