In the perspective of incremental data helping people to grasp the reality, which means Linux kernel discussions, social statistics, etc., an ad hominem ("authority argument") is used to refutate a valid piece of data based on the argument "I'm this, you're that".

For the record, when I'm saying that all humans are worth the same (our actions are the recursive product of our past actions and our passive data captation), please don't make a Godwin point because mathematics don't care about morals and emotions.