Gee Drew, was your quick reply meant to act as an anti-inflammatory medication?
Great job, if it works

I wonder, could/should we have some standard way to deal with completely contentless complaints like this?
I wouldn't support stifling them, but they really have only negative value as far as I can see. I'm sure we've all seen that even a polite attempt to engage such posters go rapidly downhill. If the best response is complete silence, then why leave the post there at all--hypothetically speaking; I'm not suggesting we delete them.
What about adding a canned message that says something like
"Thanks for your feedback. This thread is locked because it does not contain a question about OOo that we can help with. Please read the "Forum Survival Guide" and if you still have a question about using OOo, please start a new thread."
I would also support a "three strike" policy on pure trolls like this one. If someone is only interested in complaining, then they need to go somewhere else.
This idea may well fall down in the application. Many people post a rant along with a question. My feeling is, as long as a post contains some element of using OOo--rather than just dismissing it--it does not qualify as a troll.