Very often when I read your responses I am unsure what you might mean. Here, for example, I ask myself, “maybe what.” Maybe his comment was “The Master Race”, or maybe what the picture shows contains an explanation as to why people who look like that might harbor some psychological reasons for feeling some need to prop up their self evaluation?Maybe. Who knows though?
As to how anybody would know, in the first case, if you question was how would I know if what the poster typed was a comment, I say yes because I assume he had to type it himself or herself, that it did not get pasted in with the photo which says to me that his comment was here’s your master race and they don’t look so masterful, do they? So as to if that is maybe a comment or maybe not I would say it is simply by definition.
And as to how I might surmise that people who look like those folks do in the photo might have some self esteem body issues I infer it from the fact that the man with the magnificently beautiful belly marred his God given splendor with ugly tattoos. Humans, it would seem, come preprogrammed with some sort of pattern recognition that alerts them to those around them who might have genetic defects, and a lot of folk, on top of that are judgmental from the pit of envy created by self hate.