G'day George,
[many snips - see http://en.metapedia.org/wiki/Main_Page for context]
The quality of this site is low enough that their article on the newest large building in the world ( [[Burj Dubai]] ) denies that it exists. People are going to look at the site and laugh at it, if they look at the content.
I agree that these guys are not particularly worrisome; they're clearly so nutty that even the extremist racist fuckwits will throw up their hands and say, "Those Metapedia guys are insane". I can't see the site gaining much support, or influence.
However, when it comes to Burj Dubai, I think they may have been hit by a hoaxer (as in, someone out to damage their reputation from within with satirical articles). The same author is responsible for this: http://en.metapedia.org/w/index.php?title=Afro-European_War&oldid=1181
"Excuse me, are you speaking Jewish?" inquired a curious Irving. "Because if you read my latest article for the Daily Mail, you'd know that the Jewish language was created by a panel including Communists, Labour party officials, and Irishmen."
There are people crazy enough to write a passage like that without intending to lampoon racism and Holocaust denialism, but I suspect this chap isn't one of them.