I actually did an analysis on the staff at Hogwarts... it's true, some of them were pretty unimpressive. Only one of them (McGonagall) got the highest score available, and I think half a dozen of them had failing scores. Dumbledore really needs to rethink his hiring practices.
I've read a few "Dumbledore-bashing" fanfic stories in which this issue is addressed (along with many others; suffice to say that Dumbledore is definitely not one of my favorite HP characters).
There are a couple of YT channels - Harry Potter Theory and Harry Potter Folklore that explore some of the plot holes and WTF moments of the novels and movies.
Anyway, username: Timewalker. I love science fiction, especially time travel. I love history, especially ancient/classical Greece, Rome, and Egypt, plus the Plantagenet/Tudor eras. My SCA persona is based in the late 10th century.
Part of my inspiration also came from the fact that most of the people in the Society for Creative Anachronism branch I was active in were also science fiction fans who enjoyed playing D&D and Civilization (the original board game, pre-computer game, though we all got into that as well eventually).
I look at this part of my life as "I can't decide which century I want to live in, so I'm just going to try them all." I walk through time, exploring as I go - in many different universes, simultaneously.
I've had a lot of different usernames on various forums and sites over the years. If anyone here is into NaNoWriMo, I'm active as Timewalker on the forum there as well.