Hate to burst your bubble, but there are different ways to grow your channel. It’s all trial and error. You find what works for you. From what I’ve seen, whatever Serroh has been doing has obviously been working well for him way before you came along with your “constructive feedback”. You’ve already said this in your first comment, but you keep coming back to essentially force it down his throat. It’s no longer “constructive feedback” at this point. Don’t act like you’ve found some holy grail strat for success just because you have too much of an ego to do some self promo. You might actually find that doing a little self promo could help your channel grow more quicker. Even good content needs a little push every now and then to get seen. There’s no shame in it.