Earlier quoted context omitted.
And? Share an example. This reads like conspiratorial thinking without any evidence.
Not the OP but I'll back him up, and I'll edit this comment when I come across them. They're pretty common. If the domain of knowledge is niche and the page is absolutely huge, that's a good sign to start looking for editoralizations and slants. A lot of wiki pages about smaller companies only list the good things (fundraising, tech, etc.) and omit any controversies. The deliberate omissions due to bias are even more…
But, its by far the best human-averaged source of info on most topics. I'd say even politically charged topics, definitely much better than most news out there who always show some clear bias.
Its not exhaustive (another common complain form folks who seek visibility by complaining and denigrating stuff for the heck of it or some immature popularity), its not meant to be. You also don't do postgrad level physics studies from Encyclopædia Britannica, do you, but it may give you some shallow introduction to orientate in the field a bit.