Dtube kassiert 25% des rewards. 10% des rewards deines videos werden für das hosting deines videos hinterlegt. Ich schätze mal die restlichen 15% sind für frische videos. Siehe hierzu den ersten eintrag vom dtube account

I have recently created the @dtube account. This account will be used to collect 25% of the DTube author rewards. 10% of these fees will be used to pay for long-term storage of the files on IPFS Store. The rate is $0.044 per GB per month. So, for example, let's say you upload a 100MB video, that earns $10 rewards, then $0.25 will go to @nannal and ensure data redundancy for ~57 months. Once this time is passed, users will need to either pay themselves (crypto accepted of course) to keep the files being seeded, or seed it themselves directly on their own PC and connection.