Subscription service for Discord channel memberships

Hey there!

Almost can't understand why Discord doesn't seem to have a subscription integration yet, since it could generate quite some revenue. I'm talking about letting channel owners offer a subscription service that allows users to use certain private channels and receive additional benefits like extra content. Just like YouTube memberships, Discord could take a certain percentage (please don't take 30%) of the subscription cost and take care of the payments and role assigning/removing.

Thoughts?