User blog comment:DaNASCAT/Technical Update: September 9, 2015/@comment-25801460-20150910214518/@comment-1251315-20150911213202

I think Wikia should consider creating a wiki that can't be edited, but where people can upload as many emoticons as they want. Call it an "emoticons for chat", which can be a central repository for ANY images. Obviously, this should be rights restricted and only allow certain file types to be uploaded. I do believe such a wiki already exists, maybe it needs to be used again in this case.

Also, as mentioned above, images CAN hold security exploits: browsers CAN fire the hidden code and cause malware. It is very easy for someone to send you malware in the form of a file or image. Just because it's an image does not immediately mean you are invulnerable to a security exploit through them. The only way that an image can be trusted to be an image is through exif data.