Because it's not accurate? As I and others have pointed out?

I'm a bit confused then. You said that you're "not arguing anything other than the fact that Wikipedia is biased" but then also argue that Wikipedia is also inaccurate after someone points out that "so-and-so is biased" is a meaningless phrase. This reads like a shift of the goal posts and it discredits your arguments.

Regardless, one can see this claim of inaccuracy repeated in these comments with no provided example of such. The saying goes "what is presented without evidence can be dismissed without evidence". It is therefore reasonable for a reader to conclude that the claim of inaccuracy can be dismissed as "bullshit", in the sense that the person making it cares not for its veracity.