The RP value is priceless. The profile information is written in character, from his point of view and makes him sound a little more sympathetic than I remember and a heck of a lot funnier. His MySpace friends list includes other Warcraft luminaries with their own page: Sargeras, Akama and Ner'zhul aka the Lich King. The automatic music that plays is, of course, the World of Warcraft theme.
This has been going on since Blizzard made its presence known on the premiere social networking site. I suppose it was only a matter of time before the Burning Crusade and Wrath of the Lich King main players were parodied on the site. But, as one commenter on Illidan's page wrote, this one is "Full of win!"