That is what I am talking about. See the process I mentioned in reply to another person. You pay if its new or being dedup
This doesn’t make sense to me.
Anyhow you pay to upload, even if the chunk exists. Just if it exists then nothing is stored, but the network did work for you. You also get your datamap from the upload.
The bit about popular is that a popular file is more likely to be uploaded multiple times. Only one copy is stored, but each copy uploaded is charged for.