While some in the crypto space are skeptical that the wave of profile picture (PFP)-focused NFT projects will remain relevant, many holders are hopeful about the potential long-term value of NFTs through intellectual property rights and a copyright designation known as CC0. CC0 is the most permissive of Creative Commons licenses. Under CC0, a creator can share content in its entirety for any purpose, even commercially.
Source: What Is CC0? The Copyright Designation Buzzing in the NFT Space