Great points you've raised. Yeah I agree, the ratings are there for a reason. I don't know how my brother in law's brain works really.
I play games but never really raged. Sometimes though when my Jungler doesn't come help me, I lose my crap! But playing LOL for so long made me realize that not everyone knows the game or have other priorities.
my brief foray into games like LOL and DOTA made me realise I'm never not going to be a noob at them, and I'm never going to enjoy the game with the regular abuse that noobs get playing them. Similar to my lack of enjoyment of FPS games where there really isn't an environment for social players that doesn't end up getting dominated by non-social players that get their enjoyment picking on and abusing those that are trying to learn to play.
Or maybe I'm just old and jaded...
Play to have fun and not get caught up with name calling and other bs that is the norm in gaming.
I don't really take what people say seriously in online gaming. It's just a person behind a computer after all. When you do, the game becomes less enjoyable.