User blog comment:ProfessorTofty/Trip to Wikia headquarters - Video features, Presentations, Photos & More/@comment-5083449-20130215005043/@comment-4476879-20130215005159

Well, it's actually more of a space within an office building, shared with several other companies. And, no, I doubt they know personally about every wiki, there are thousands if not hundreds of thousands of them, and new ones are created often.