New research finds that while people often agree on what a tattoo says about someone’s personality, those judgments are usually wrong. The study reveals a consistent gap between how tattoos are perceived and the actual personalities of their wearers.
Really? Anecdotal evidence, in a scientific setting, is described as
This study is about the general trends of people judging others with tattoos incorrectly. It doesn’t mean everyone, always, judges people incorrectly.
It also states that context matters for how accurately you judge someone. The gun, money, and the public information of his terrible actions, all change how you assess them and how accurate your assessment is.
So in your case, yes, if you judged him as a rapist because he had a birthday tattoo, you were correct. But that is anecdotal evidence. And context based.
Unless you’re implying everyone with a birthday tattoo is also a sexual assaulter/rapist, which is certainly a take, then it is anecdotal and doesn’t go against the studys findings.