Was just going to throw out and ask if it was possible for to make a public match history for ranked. In League of Legends, you can search for a person and see all of their recent matches. Was thinking this /could/ be good if implemented to the lodestone and would allow people to track win traders a lot more easily. There are some niche cases like one I experienced the last 2 days on Aether where something like this might help.
There was a *cough* white mage healer from Jenova *cough* that was in Gold elo queue's for 10+ hours that I noticed was throwing matches. They were alternating between having a few 0 damage/healing out matches and then matches where they'd cast a move to build LB and then back off completely and stand there far off from their team, come in to throw an LB, run into the enemy and cast nothing and die, and then respawn and stand right outside the spawn like they wanted to do enough to have some type of numbers on the leaderboard but they were incredibly low due to no actual effort. And this was something I normally give the benefit of the doubt might be lag, until I saw this performance for 4-5 games straight and happening again the next morning. A part of me wanted to file a report since they were on a near full 90's main account, but with it being the day before the season ended and deranks coming with the next patch and matchmaking penalties, I let it go since I didn't want to spend time clipping footage or trying to set up a livestream from around 4 games to just have a small suspension if that was even enough of pattern for a GM to action on.
But, after hearing that they're doing 10 day suspensions for ranking manipulation, I almost feel like going hunting for wintraders at this point and having a publicly available match history would allow players to tell who they're getting grouped with and how often/what those performances are. If I would've been able to see 10 games straight of them throwing, probably would've filed that night. But if you're a random person that only sees one game, you may also not be motivated to file a report either.