MB's just insanely devoted.
My boss IM'ed me a bunch of questions about Dark Shadows that he got off the web. (E.g. "Who was the innkeeper of the Collinsport Inn, and how did he die?") Naturally I was able to answer them all, which surprised him, because they were supposed to be hard questions! He ended it with, "Who is the biggest Dark Shadows fan of all time?" He said the answer was me, and I told him he was wrong, it was either Midnite or MB.