Bc some people cant imagine that other people dont want to play the gane the way they do.
Most people will accept if you use a "bad" weapon, thats fine, for many people pushing a weapon they like is more important than being effective.
But if you use sticks, experimental/meme builds, or a playstyle that might not be optimal for your weapon, that for some reason seems wrong to some, like, play whatever weapon you want, so long as you do it the right way, even if you recognize that the way you play isnt optimal.
Which is dumb, people should be free to play however they wish, all the rest of us should be doing is providing them with the information so they can play how they want even better.