There are (roughly) four things that can be done about griefing, cheating, and other toxic behaviors: 1. Design a game where toxicity is naturally mitigated.

There are (roughly) four things that can be done about griefing, cheating, and other toxic behaviors: 1. Design a game where toxicity is naturally mitigated. 2. Create limited spaces where people mutually agree on a code of conduct. 3. Conduct yourself virtuously within your space, to the best of your ability. 4. When someone breaks the code of your space, quietly exile them to the desert. Ideally everything is possible with point 1 alone, but at scale you inevitably encounter more and more persistent and skilled adversaries. Point 2 helps reduce the scale factor. Point 3 controls atmosphere - if you allow yourself to fly off the handle then you degrade the space. Point 4 is the last resort; you want conduct to proceed along a planned trajectory, but they consistently disrupt it. So the best you can do is remove them quickly and quietly before things explode, because nobody can be counted on to follow point 3 all the time and once it explodes the next hour or more will be spent discoursing over vigilantism and victimization and rights and freedoms instead of whatever you had planned. The alternative - allow anything to happen and "let people suck it up" - basically encourages Lord of the Flies in microcosm, which is very, very bad for a game. Somehow Twitter has managed to survive with it, though!