armoredman,
I didn't say "No one has any business taking deer with an airgun.", I said that if he had any business taking deer with an airgun, he wouldn't be posting questions about airguns here.
Just like the analogy I used. Clearly there are people who are qualified to work on exotic automobiles, but it's not because of the brand of wrenches they buy, and you don't see them posting very basic questions about their job on the internet.
I've shot a .308 air rifle with enough power to take a deer, and I've eaten wild hog that was shot with an air rifle. It's certainly possible to take larger game with a very high powered air gun, but it's very safe to say that someone who posts a question like "what is the MOST powerful pellet/b-b rifle available?" and then turns around and says he wants to take deer with his "powerful pellet/b-b rifle" is way, WAY off track.