On the subject of experts posting dangerously ignorant misinformation: I actually think this is great.
When a vulcanologist posts about how women have a special bone structure that lets them do laundry better, or whatever, and they are roundly chastised for it, the best ones learn from their mistake.
The ones who double-down and found the Women's Laundry Skeleton Institute, and blow up their own careers, well, they were probably also bad vulcanologists.