In this context, it means you cannot waive that right. I. e. there could not be a license saying "use this freely, I don't want to be paid". The "no payment" pa

In this context, it means you cannot waive that right. I. e. there could not be a license saying "use this freely, I don't want to be paid". The "no payment" part would be null and void and anyone using CC content would be in danger of being contacted by the author requesting "fair" payment any time later. (But I would say this would not be a completely unprecedented case, CC licenses brush aside a few unalienable rights already.)