Was this written by Jordan Peterson or something ? How is happiness not meaningful ? Don't we pursue meaning because it makes us happier ? Why the fetishisation of suffering ?

Even hedonism is not meaningless. It recognizes that pleasure is sometimes attained through some suffering via making efforts to achieve goals for example. Hedonism isn't even meaningless or a bad philosophy.

I suspect that the Peterson-like people aren't actually pursuing meaning itself, they're pursuing a grandiose idea of themselves (or more plainly, status), that's why they express so much contempt. Same thing could be said about Nietzsche.

But Nietzsche and Peterson, I suspect, were and are deep down miserable, unhappy, lonely people