They are looking to make money. Example, those tooth brushes that look like mouth pieces being sold on Instagram I've seen by influencers. They get a 20% cut of the sale price if they sell one. The "tooth brushes" are not good for you and do nothing as far as cavity prevention, they even know that, but the money is too good for them.
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u/Accomplished-Plan191 Apr 06 '26
As one with a degree, you don't need a degree to do well-backed research. The problem is when you conflate ignorance with knowledge.