That makes sense. I wouldn't have thought of it myself but it was a hatnote on one of the articles so someone had clearly thought there was potential for confusion somewhere along the line, so if in doubt put it in. Both Comiccon and Comicon now redirect there so it should help anyone who is taking a wild stab in the dark on the names. The Japanese comic con in particular is an important one to add - good catch there.
Also just keep an eye out for the New York one being removed, Comic-Con seems to be unhappy with any mention of it in connection with the San Diego one. (Emperor (talk) 14:11, 2 August 2008 (UTC))