What you're missing is that despite the high-profile nature of Nintendo's takedowns, they're only a drop in the bucket compared to the amount of Nintendo-relate

What you're missing is that despite the high-profile nature of Nintendo's takedowns, they're only a drop in the bucket compared to the amount of Nintendo-related stuff being developed and published in the open. The takedowns are also highly sporadic. No one bothers with those measures because no one needs to, until suddenly they do. The other thing is that once you're in the community with a traceable identity, the only way to transition to a proper untraceable identity is to abandon your identity – abandon your friends, abandon your followers if you're a public figure in the community – and start from scratch with a new name. Almost nobody wants to do that. In practice it's probably good enough if your identity is only mildly protected. Actually, in practice you can probably get away with ignoring takedowns without protecting your identity at all, if you're not engaged in piracy, since the only cases Nintendo actually brings to court tend to be about piracy. But that requires gambling that Nintendo doesn't randomly decide to financially ruin you. Nobody wants to do that either. Oh, and when it comes to hosting, there are no good alternatives to YouTube and Twitch and Discord, certainly not if you want other people in the community to find you.