I mean if someone is doing that it actually would be the rare example where I could say someone is trump deranged. All medication prescription and non prescription is about weighing the potential risks vs benefits. Taking normal dosage of Tylenol is mostly harmless, and the reason a blanket statement of "it's no harm, just don't take tylenol" is a horrific mischaracterization even IF the studies cited showed a clear and blatent causal relationship between Tylenol and potential issues, because it's simply weighing risk of treatement vs nontreatment. IE fever and pain are also things likely to negatively impact a pregnancy as well as the health of a mother.

Taking any medicine while pregnant, when you do not currently have any condition it is treating is just stupid risk, and if you are taking more than the recomended dosage just to flex on an idiot, you are becoming an idiot yourself.