The reason why you are asked better source is because, and let me say this slowly, anyone can post any crap on the internet without repercussions. Lets start with the one that references "Sasha Latypova". If I search her credentials she earned a title on Master of Business Administration, except that she used that to work as a co-founder of two companies, and none of them are even adjacent to pharmacology, but she is a "global PHARMA regulation expert". I'm sure that the other persons there will not have those issues, right?
Equal and opposite reactions, if parent poster is falsely that confident, then its fair to meet them with strong condescension on the other side is it not?
