Wikipedia survives while the rest of the internet breaks

Wikipedia has plenty of propaganda. It's often at the fringes of knowledge, in niche subjects where there isn't yet an established group of proponents and detractors. It can be quite subtle too, will fool most laypeople, even those who are otherwise intellectually savvy.

It's only when a subject becomes popular that the propaganda gets recognized and rectified.

And? Share an example. This reads like conspiratorial thinking without any evidence.