"No, I'm not in the habit of complaining to institutions that make it clear they don't welcome such complaints from people on the wrong side of the political fence."

If by "not in the habit of" means you've never tried it once, then that part would be correct.  I don't think most people use it that way, though.

If you've never tried it once, however, it does raise the question just how you know it's "clear they don't welcome such complaints from people on the wrong side of the political fence. "

The rules are as good or better than any I've seen and the general disclaimer says no such thing.

Yet you're absolutely, rock-solid convinced that the Globe is picking on you because of the nature of your political beliefs.   Hmm.