On Nebula, the channel also gets a certain share of the revenue if you watch the video on that platform instead of on YT. Some channels actually publish their videos early on Nbula, while other channels make exclusive videos too. Either way, avoiding YT, and favoring other platforms benefits everyone.

There are also lots of smaller video platforms built by youtubers. They publish advertiser friendly (censored) videos on YT, but put the real versions on their own platform. This way, fans can support their favorite channels, and get to see videos that are too cool for YT.