I'd say his lack of acknowledgment of Larry Sanger is actually quite useful, as it is a perfect and irrefutable example that Wikipedia has no qualms with omitting information and twisting the truth to serve a narrative.
> In late 2005, Wales edited his biographical entry on the English Wikipedia. Writer Rogers Cadenhead drew attention to logs showing that in his edits to the page, Wales had removed references to Sanger as the co-founder of Wikipedia.[53][54] Sanger commented that "having seen edits like this, it does seem that Jimmy is attempting to rewrite history. But this is a futile process because, in our brave new world of transparent activity and maximum communication, the truth will out."[20][55] Wales was also observed to have modified references to Bomis in a way that was characterized as downplaying the sexual nature of some of his former company's products.[16][20] Though Wales argued that his modifications were solely intended to improve the accuracy of the content,[20] he apologized for editing his biography, a practice generally discouraged on Wikipedia.[20][55]
This promotional website is created by the Wikimedia Foundation (it says so in the About page), and "has no qualms with omitting information" (GGP's claim), as it fails to mention that Jimmy Wales is co-founder of Wikipedia alongside Larry Sanger. By contrast, Wikipedia does not omit this fact.
Wikipedia is extremely biased and has a lot of deliberate misinformation, so I wouldn't trust it for anything except as a basic starting point for information gathering alongside a web search. Wikipedia's founder itself has denounced it for its bias.
