Quote Originally Posted by Lambdafish View Post
Whether that makes it fair or right that players should be allowed to be carried through content is a reasonable debate, but as far as terms of service goes, its perfectly valid, and will never be banned.
As it is long ago, when content, that gets advertised for selling, was doable by 7 man or less, its not a carry, that gets advertised.

The point: account sharing.

So with the T&C in mind, this service is not "perfectly valid".