>Whereas Wikipedia used to normalize and lend credence to pseudoscience, conspiracy theories, and fringe rhetoric, it has over time become firmly anti-pseudoscience and anti-conspiracy theories. Okay, so before the mid-20th century Wikipedia would have categorized the concept of plate tectonics as pseudoscience. Consensus doesn't mean truth. Today's conspiracy theory could be tomorrow's government press release. Bein…
The plate tectonics hypothesis was criticized because there was no known mechanism for how continental plates could drift. Until that mechanism was understood, it was perfectly good science to be critical of Wegener's hypothesis, and a Wikipedia of that time would have been entirely correct to document the hypothesis as controversial. Hindsight is 20:20.
It's also very much not an encyclopedia's job to try to discover the "truth", whatever that means! Its job is explicitly to document current consensus understanding, however flawed that might be. Trying to figure out the "truth" is very much above Wikipedia editors' pay grade.
Pseudoscience and conspiracy theories are something entirely different from simply proposing hypotheses that might not be backed by currently available evidence, and it's incredibly fallacious and dangerous to try to equate homeopathy or flat-Earthism or climate change denial with something like hand hygiene or plate tectonics.