Unpopular opinion: I'd rather have someone on my team that's good and toxic then bad and friendly
This came to my mind after playing a ranked match in which someone asked me for a top/support swap, I said no (Since it's my least played role and I'm not very successful at it) so the piece of shit locks Warwick and goes bot with that. The Jhin complained about him the whole time and naturally I flamed him quite a bit for being a child and locking WW support when he didn't get his way, but he was "Friendly with a positive outlook."
Doesn't matter that bot lane lost their turret by 8 minutes in giving the enemy Ziggs 500 extra gold, doesn't matter that he ruined a ranked match for his own selfish reasons, doesn't matter that mechanically he wasn't very good and did nothing to help his other laner or team, doesn't matter that he didn't buy a Sightstone. Nope, none of that matters because he's "friendly," so report the top laner that's actually trying instead of him.