I've nothing against drift myself. In fact quite the reverse (except where it is used to divert a thread from a genuine discussion of something genuinely worth discussing).

What I think MtheGM was really objecting to was what CS Lewis called "flippancy" (in The Screwtape Letters):

Among flippant people the Joke is always assumed to have been made. No one actually makes it. Among flippant people the Joke is always assumed to have been made. No one actually makes it; but every serious subject is discussed in a manner which implies that they have already found a ridiculous side to it.

It's a very pervasive trick, and a very sneaky one. And it's a great technique for all kinds of bullies. "Where's your sense of humour?"   (And incidentally I'm not for a moment saying that there isn't a ridiculous aspect to Morris Dancing - but the point is, those who love the Morris are aware of this and very much in on the joke.)