Attacking may be the wrong word. But yes, I am focusing on the poster's experiences. He is making a claim. Which he cannot validate as he has not had any experience with hard contact martial arts. And he is not claiming what is/isn't hard contact, or what styles do/don't do hard contact. He is claiming that A) hard contact impacts his ability to function afterwards (presumably in terms of being sore), and B) per his words prepare you right, meaning not hospitalizing you. Youtube videos don't really go into that, so the only way for him to validate his claims is to have done those things. Which he has not, has no intention to do, and has no intention to do even basic research about, while making his claims.
Also, there is a point to focusing on a poster's points, rather than the poster. But when the poster continuously makes claims on a variety of topics, never providing any evidence of any of it and always backtracking his points, it seems pretty pointless to actually address his points themselves. Essentially the same as arguing with a five year old about economics-you can do so, but it's an exercise in futility.