If it's marketed to you, be confident you don't need it.

Leitfaden der Medienanstalten Werbekennzeichnung bei Social-Media-Angeboten

“How does Contenture work?
People want to support the sites they depend on. Contenture makes this possible. Contenture users pay into the system, their money is distributed to the Contenture-enabled sites that they visit. The more visits to a site, the bigger slice of the pie that site receives.

Sites automatically know that you are a part of Contenture when you visit them, and they take care of you. Since you are financially supporting that site, they might tack on an extra gigabyte of storage, pull the ads, give you access to the archives, etc. You get a better internet, and you are directly contributing only to the websites that you use.”

Being a bit lazy. Some domain/hosting configurationing and amateurish ad-designing for which is fun :)