You chose to reply only to the final, weakest part of Tossrock's comment. Yes, you're quite right, dropping celebrity names isn't much of an argument. The rest of his comment seemed pretty bang-on to me. I'd be curious to know if you have any reply to "Do you think Burning Man attendees don't live in the real world?"

Whoever said "there's no event like Burning man on this planet" was a bit breathless, but going <<durr, try real life instead>> isn't much of a reply. If you want to start listing fallacies, I think what you have there is a false dichotomy.

Celebrity name dropping isn't appeal to authority when the question is "are there no people who attend that are successful?"

Naming successful and wealthy individuals is a good counter, and we reach for naming celebrities because everyone knows them as opposed to naming Joe from accounting at XYZ corp, who has 1.2M in the bank but no one knows.

I'm very familiar with appeal to authority, which is not what I've done. Appeal to authority is when you argue "Statement X is true because authority Y said it is". This is not what I said - I listed examples of successful, well regarded people in the "real world" who have attended Burning Man, as a refutation of your (poorly stated) premise that people who attend Burning Man do not also accomplish things in the real world.