Hey Arch,
I think that in this instance, a moderator taking action will do more harm than simply ignoring the post. The user didn't name anyone in particular or question/complain about a specific action, and then quickly pivoted back to the thread's topic. While I agree that it wasn't exactly a nice thing to say, now that the thread appears to be back on topic, I think we're OK.
I am Locutus of Borg. Resistance is futile. Your life, as it has been, is over. From this time forward, you will service us.