Watching a match after defeat
First of all, this is a great practice. It is very good to analyse situations where you made mistakes and figure out how you can try to keep from doing it in the future.
I was just doing this for an ARAM match that I was honestly very salty about.
In the match I really started getting annoyed by this Jarvan IV who kept pinging constantly and was trying to give commands in chat like he was the team leader or something. I'm fine with communication, but there does come a point where someone constantly pinging me back when I wasn't even positioning to go in just tilts me.
Then as soon as this goon hits level 6 he is diving in for every single ultimate he can find, many times under tower, and almost every time in a position where NOBODY on our team is available to follow up.
I mean he literally has less than 50% health, diving into a group of 5 enemies who have no less than 75% health, and the rest of his team are miles away with low mana and/or abilities on cooldown.
We have to immediately book it towards him to try and make anything of his suicide, and most of the time we come up with nothing.
Now I know that the good players will say that you should always try to be more critical of yourself than others. Don't blame someone else for a lost game because you make mistakes as well. I will admit, I certainly did, and some of them did have nothing to do with him.
But, ... in this case, I genuinely believe that the biggest mistake was to not just let him die when he tried to constantly force an engage.
So that's my rant.
GG