He's misanthropic, anti-social, lazy, shallow, and kind of a jerk. He's also not very bright. So why on Earth -- any Earth -- would a complete stranger expend the magical energy necessary to shove him into another reality, give him unfathomable power, and grant his every last wish?
Why indeed...
As requested, here's my parody of the second-worst thing to ever happen to fanfiction.* The cover art is only tangentially related, but it amuses me, so I'll keep it unless something better comes along. (A talented artist who loathes this ponyfic sub-genre as much as I do might attempt at some point to draw the main character in all his gear, but I'm not counting on it.)
*The number one spot goes to Erika "Snowqueens Icedragon" Mitchell, a/k/a E.L. James.