User blog comment:Sentomaru/Doc Q.... is he powerful???/@comment-4899461-20120907045127

I think that Oda has been showing us more and more really goofy people who are actually quite powerful since the beginning of the series. Really, Oda has been showing us that people who are more like Luffy in personality are actually more powerful than people like Kuro or Hody. Many of the more powerful characters in the series have humorous faults, and the percentage has grown since the series started. Like Magellan and Hannyabal. For the first half of their respective arc, they're just each other's comic relief. But once the fight starts, they're easily the most powerful members of the ID staff, and the only ones even capable of fighting with Luffy for more than a second (and technically, Luffy never defeated either of them).

Doc Q is going to be powerful. Not just because he's a Blackbeard Pirate, but because I've learned that in OP, you can't judge a character's strength on your first impression.