You seem to be going out of your way to find fault with moderator actions, or perhaps a particular moderator. To understand what Dave Tweed wrote, we have to consider what you wrote first:
It wasn't a crap question at all, as evidenced by tcrosley's
excellent positive answer, as opposed to your less than helpful flames
seeking, it seems, only to insult the OP for asking a question beyond your
That's when Dave responded (quite reasonably and with measured moderator authority):
The whole thing is moot anyway, since the question was deleted at the OP's request. I just want to remind you about the SE policy to "be nice". It should be possible to discuss this without insulting other users.
There is no reason you should be upset at that response.
You then ask above:
And, yet, the record reflects that it was "deleted by Dave Tweed♦ 28 mins ago", instead of by the OP.
Right, just like Dave said. Dave didn't say that the OP deleted the question, but that it "was deleted at the OP's request". It seems the whole issue is a minor misreading of Dave's comment. This is not something worthy of making a big deal about.
The bigger issue is that TCrosley wrote a really nice answer to something that wasn't asked. Unfortunately, the question getting deleted caused that effort to be wasted. That's a risk you take when answering a crappy question.
However, there is still something TCrosley can do about it, and I think he should. He can ask the right question himself, then copy his existing answer there. Answering your own question is allowed here, even encouraged in the right circumstances. I've done it a couple of times myself.