Actually, I told my boss about the post before I submitted it. But I was only letting him know -- I didn't ask for permission. The decision was mine and mine alone, so any (unlikely) backlash won't be directed at him. We have a good relationship and see eye to eye almost all the time. He did say that he didn't think there was anything wrong with posting this.

The reason for the throwaway is because I generally try to avoid "stirring the pot." Or at least, don't want a reputation as a pot stirrer. But if some higher up confronts me about it, I won't deny posting it.