People keep downvoting my posts. I don't know why.
Well, let's start with the most basic reason; because, in essence, your threads provide very little discussion value, if any. All you're doing is making periodic posts saying "I just had a match with bad players", with a vague call for Riot to "step up their anti-toxicity measures", and little else. While there is potential value in discussing how negative behavior affects you and how you can mitigate those effects, the discussion value diminishes when it becomes a case of simply ranting about other people's negative behavior - which is what this has become, at this point.
And we do have a subboard for that.
Then, of course, there's the issue of spamming; when you initially started doing these posts, you made one post, then another the very next day, and then a third in just under a week from the second one. Making posts with minimal discussion value is one thing, but doing the same thing over and over - especially within a short timeframe - that's spamming, which is against the Boards Universal Rules.
People, consequently, probably downvote because they don't come to Player Behavior for the daily/weekly update of "matches I had that sucked because of toxicity" - this is a subboard meant for discussing player behavior and the player behavior-related systems, and, while yes, there is at least a modicum of value in discussing other people's behavior, it's ultimately pointless because those people are neither here nor there.
And, you might say; "but wait, I am discussing player behavior related issues", to which I have to say, with all due respect; you're not. You're saying "I dealt with toxic people, Riot, fix this." You're not offering suggestions for how Riot could fix the community, you're not offering suggestions for how the system could be better tuned to handle toxicity, you're just saying "Riot needs to fix this."
That's not a discussion.
And another reason you might be getting downvoted is because of strawman arguments against people over downvotes.
Maybe they just don't want to see how bad this community has gotten. Maybe they don't want to know. Maybe the community doesn't WANT to be fixed.
We already see how bad the community is; we see people posting their chat logs littered with negativity and toxicity daily. We know full-well how bad people can be, and we do want to see the community improve - but we know we can't accomplish anything by just pointing to bad matches and saying "fix it".
You also have some misconceptions about the system, as well as some problems that could very easily be solved;
Easily abusable reports...
The reports are not "easily abusable". Reports only trigger a review, and have no bearing on the outcome of the review. If you get punished, it's not because the reports were abused, but because you broke the rules.
...but they keep getting away with it anyway, because of the pattern of ganging up on one person on the team, usually the one not being toxic, and any time they call for their clearly abusive teammates to be reported...
If a teammate is breaking the rules, there is zero benefit to calling for them to be reported. Report-rallying does nothing. The IFS doesn't care how many reports are filed, it simply checks if any amount of reports higher than zero are filed, at which point it reviews the player's behavior, and punishes accordingly.
If people are ganging up on you, mute them, report them, and move on. Report rallying serves no benefit at the cost of opening you up to be reported, due to report-rallying being a form of harassment.
the victim gets reported instead. For something like 'inting'. Or 'giving up'.
If you get reported for intentionally feeding, but don't feed, you won't get punished. If you get reported for negative attitude, but aren't negative/defeatist/etc., you won't get punished.
If you don't break the rules, you won't ever be punished, no matter what reports people file against you.
And the toxic players get off scott free because they just don't report eachother. Ever.
And this can easily be solved by reporting the toxic players yourself. Don't call for reports, don't threaten reports, just do it. 'Cause like I said earlier, the IFS doesn't care how many reports are filed as long as the number is higher than zero. Which is why on the PB boards we always say 1 report = 9 reports.
So if you report them, then guess what - they won't be getting off scott-free.