Accuracy according to whom? Wikipedia is a battleground for ideologues. You can't trust anything even remotely controversial present there.
They already do. I'd love to know how much "brain damage" RLHF and other censorship techniques cause to the general purpose reasoning abilities of models. (Human reasoning ability is also harmed by lying.) We know the damage is nontrivial.
https://cdn2.assets-servd.host/anthropic-website/production/...