I've noticed that there are cons out there that are not listed on this site, mainly because the category does not exist on the site.
Can the category, "Other", be created?
For example, VidCon is an internet video convention. (Vidcon.com)
Many people summarize it as a YouTube convention, but there's no category for it.
Another example, "My Little Pony" conventions. It's not anime or a furry con. Where does it go?