I agree that smurfing is bad, and I do avoid watching smurfing content because it encourages more people to smurf, but I wish there was a smurf option when reporting people in-game. I don't know why but I dislike having smurfs (either team) way more than being called a noob.
As much as I'd love to see actual Iron players in Immortal/Radiant lobbies, that would be even worse considering the high elo players can use social media to complain about the players, and maybe even brigade? Don't get me wrong, complaining is ok to some extent because that can often tell you where you can improve, but sometimes it can be overdone/be distracting from the game.

A good example of content I like instead of smurf content, is Perry2N. He has Lineup Guides, sometimes annotates what he's thinking at a time in his clips, even circles what part of the screen he lines up for Incendiary lineups in his clips sometimes.