I have no idea how to get the youtuber rank or what things you can do with it  pls tell me.

From what I understand, it's a punishment rank. You won't be able to talk, break, or place blocks with this rank.

It's probably just a renamed "noob" rank.

 The youtuber rank is basically a renamed version of the noob rank, yes. It was a joke rank really, and not a serious obtainable rank.

We do not have any ranks which are obtainable by having a 'well known' social media, such as number of subscribers, or followers on twitter, etc. We also have no intentions of creating such ranks.

The only way you can obtain a rank with more permissions than the default rank is via purchasing them from the SWD Store. Some of the purchasable ranks include Donator, Beta, VIP, VIP+ or you could even buy your very own custom rank!