Becoming too contrary?

In Frank Rich's October 27 review of Brian Kellow's new biography (A Life in the Dark) of movie critic Pauline Kael (1919-2001) ("Roaring at the Screen with Pauline Kael"), he refers to Kael's "self-dramatizing contrarianism" and writes that she should have gotten out while the getting was good, before she would "invariably flame out in...self-parody [and] first-person megalomania."
    Self-conscious about my own recent possibly excessive contrariness (see, for example, "What was that about Halloween?"), I have to stop to wonder and consider whether I'm in danger of turning into a grumpy old man, as an old friend observes with a wink and a smile. Clues that this might be so include an occasional pervading sense of unease—not entirely relieved by going back, often several times, to try to reduce a post's rough edges—and the wish that I hadn't posted something or shared it to Facebook before I'd done the sanding.
    Too late, too late.
    For those particular posts, anyway, but hopefully not for myself.