I am currently stuck in silver and I see so many posts about playing against smurfs and how it sucks but how can you actually tell it's a smurf? How do you know the difference between "Me and my team just played bad that game" and "We got...

I’ve been thinking about the idea of coaching, and thought what rank would it be acceptable for a person to begin coaching at? Like, how high of a rank does someone have to be to be considered good enough to coach? Edit: I’m talking about...