Talk Mindark and all the Planet Partners in to not making the virtual universe so damn "dynamic" - i.e. changing all the time, mostly in their favor, in every way, nearly everyday so that everything gets nerfed constantly, and you might have tons of participants more willing to help out...
As it is the items in game change too darn fast - so fast that many of us are not even aware of the changes when they do happen, so keeping track of those changes and logging them over there is just too much of a hassle. Besides that... entropedia isn't the only wiki out there... entropiaplanets has one too... and since 711 runs ef along with entropedia, and sold the forum database to FPC, I think some that used to update there a lot are still irritated over that whole scuffle a lot...
Why update that wiki database that he owns too since he's likely just going to sell it off someday too?
I used to try to update it when I could... but so many things change so fast, it's a pointless effort. As soon as you finish updating something, a new vu will come that changes it all, making all previous updates there completely outdated and useless.