Sometimes what you think is just an off the cuff bias of your own imagination. I make those kind of guesses too but reserve absolute judgement.
In the medical research field there is a remarkable amount of fudging the figures, plagerism and false claims - more often by older established members. Big Pharma pays huge dividends to winners when profit motives are the real goal. Losers can be winners based upon sales and not effectiveness in a lack of regulation enviornment.
Sometimes the easiest cheat is to steal research from a non english speaking country and just translate into English as one's own work.

Sometimes a cigar is a real cigar.