Yeah, taunt the helpful... 
How is pointing out typos helpful? Did you think he doesn't know how to spell dungeon? Or that others might come hear, read it, and then forever think that's how it's spelled? In my opinion, while typos are a minor annoyance, people correcting typos are a major annoyance and rarely at all helpful. But maybe that's just me...
I am the one who hardly writes any post without editing it afterwards. Because he reads it again... 
What makes you think you're the only one? ...admittedly, I don't do that on
most posts I write, because I'll usually re-read my posts inside the post editor enough times to notice most mistakes. But when mistakes do happen, and I do notice them after submitting, I'll do that, too. And it happens fairly often.
I have no intention to taunt you or start a fight... just hoping to make you review your behavior and ask yourself if you're really always as helpful as you think you are.
