What you think are insults are OBSERVATIONS proven by the words these people are typing. If I call someone bad, it's the truth, and I would love for them to prove me wrong by showing some of their gameplay. But when they don't even know how a Krig shoots, or what affected FOV does to recoil, why should I even take them seriously? Explain to me how debunking a clip and telling why it isn't sus makes it reasonable for someone to conclude that I'm a fanboy loser, trash, troll, etc.
Go ahead and prove to me that you're good enough to make judgments on how a professional player should be playing the game. The thing is I know you'd never post gameplay of yourself because you'd reveal how little credibility you have.