Did "John" from "The City Square" find who first slandered Rush Limbaugh??

Back in May, 2009, “John” left a comment on my post “You know who deserves a posthumous Medal of Honor? James Earl Ray” is a damnable lie made up by liberals.”  ”John” is evidently more computer savy than I because he knows how to go back and find the persons who first input information into Wikipedia, and those who made subsequent alterations.  Here is a link to “John’s” blog “The City Square.”

Here is his comment, reposted in its entirety, so as to give him credit, and in hopes that this advances the story:

“Actually, WikiQuote does keep a history and it leads to the name of one of the people who added the quote and the location of another.

“I first spotted the James Earl Ray “quote” here:

http://en.wikiquote.org/w/index.php?title=Rush_Limbaugh&diff=next&oldid=90990

“(WordPress broke the URL into 3 lines: it obviously should be just one.)

“As you can see from that page, it was added by a user at IP 69.64.213.146 (RCN NEW YORK COMMUNICATIONS, LLC) at 6:01 on 20 July 2005. If you skip forward, you see that is was deleted by a user at 205.254.147.8 (US DoE). The user at 69.64.213.146 then added it back in again, all on 20 July 2005. Finally that day, at 16:18, user MosheZadka restored the fake quote, as you can see here:

http://en.wikiquote.org/w/index.php?title=Rush_Limbaugh&diff=next&oldid=91136

“You can read about MosheZadka here:

http://en.wikiquote.org/wiki/User:MosheZadka

“On September 14, a user at 68.211.151.17 (BellSouth) deleted the fake quote:

http://en.wikiquote.org/w/index.php?title=Rush_Limbaugh&diff=next&oldid=112347

“That was as far as I researched it.”

THANKS (belatedly) John, and thanks for your work!

UPDATE: Some much smarter and more computer literate than I am have been doing some detective work over at PROTEIN WISDOM PUB.  They are getting to the bottom of this…