Why “no longer”?

What does this mean practically? Are they not allowed to sell it some places anymore if it’s 18+?

Makes sense. I played Dota for some time and honestly that was one of the things I enjoyed about it, unreasonable people being furious with me while being totally helpless to do anything about it other than lose their shit. Although it’s a dirty sort of enjoyment and makes things extremely awkward; on an emotional level what you want out of the match is for your teammates to fail, but you’re obliged by the rules and a sense of sportsmanship not to throw, so even if you don’t want to be dishonest about what you’re doing it’s hard to play seriously.

I think it would be cool if there was a moba that somehow formalizes the adversarial relationship you have with your team. Maybe like a Survivor esque battle royale setup; in the beginning it’s 5v5, and you’ll be advantaged by the success of your team, but ultimately you are going to have to betray them to win, and also the losers will have an opportunity to influence the outcome.

What about the genre itself produces toxicity?