Non-obvious intentionally losing at Platinum/Diamond is out of control
Something needs to be done to improve this situation, or find and get rid of these players faster. I've gotten this 7 times in the past 3 days, and it's now impacted me so much that I can no longer get back to Diamond before the season ends.
These players are making it look like they're just having bad games, while intentionally making their team lose, which is extremely easy to do at higher ratings, because a single 'bad' player has much more impact than it does in lower brackets.
For example, in my most recent game, seen below, a smurf asks if we're ready to lose and bans Jarvan, who our jungle had hovered.
https://i.imgur.com/AG9E039.jpg
Looking at this player's match history, it's full of losses and bad scores with ADCs who they have 60%+ win rate and high KDA with (and this is 60% win rate and high KDA after all of the 'bad games' they've been having over the past week). At a glance, they just look like a lot of bad game. They're still building correctly and CSing. Until you check their damage done to champions, which is often insanely low, making it clear that they weren't helping their team.
This is likely why they aren't banned, though it's clear to everyone who has encountered them that they're trolling.
Something needs to be done to deal with this, whether it be adding more people to review these players, or something else; it's not my job to fix the problem, but it needs to be fixed.