This question (deleted now so only users with the necessary privilege can see it) is obviously ridiculous, but it is pointed at me so I have trouble ignoring it. What is the right way to handle this?
Your course of action is correct. Just flag it and let the 20ks and mods handle it.
If it's egregious enough, posting here on meta (as you have done) will definitely speed the process up since you bring a new set of eyes upon it.
In the case that it's a real question but directed at you: Edit your name out, leave a comment that you're not the only guy on SO.
In this case, the question is one that really should be a comment (and that's if we're being lax about comment rules). Conversations go to chat in a perfect world.
You should have flagged the question AND cast a close/delete vote (close in this case, since you're 7k)
Whenever a user gets too naggy/tangential/offtopic in the comments/questions, just ignore him/her. I find that the best course of action.