You could argue, none of it really accomplishes anything; sports fandom in general. Why even go to games? Why spend money to go when we can watch it perfectly on TV? Does the loud crowd noises of a full arena even affect a pro athlete's performance? They're pros, right? They know how to do their job, why even go? Why even follow sports in general? We could all use our time watching sports to accomplish way more meaningful things, right?
What's next, we shouldn't mock Henrik with a "Heeeeeennrikkkkk!" chant when he lets in a softie? It's not gonna hurt his feelings so why do it? Are we insecure because he's so good???
But YS is doubly stupid since other fans make fun of us for chanting it. Because it makes us look fvcking stupid.