Depends on the advice. The game played at silver and diamond are different. So while your advice might me accurate for where you are at. Players often want to know how to get to diamond. They don't care about silver mechanics, even if they are silver. And knowing those mechanics will get them to gold quicker than some trick they learned from a diamond.
It's also why a lot people view bronze->diamond smurf streamers as bad for the game. You often don't really learn anything. You just watch some guy stomp another most of the time. Says why he did it. Then you go and try it and realize it's not as easy as he said.
In short, too many people think they're in elo hell unless their diamond. So unless you're diamond you're opinion is equal to elo hell.