Pixelization: “Do We Need a Mode of Voluntary Surrender of Publicity Rights?“:

Common-law and statutory rights of publicity in an increasing number of jurisdictions allow people to sue others for the unauthorized commercial use of their image, likeness, and voice. Creative Commons licenses release only copyright entitlements – not publicity rights. For a photo of an inanimate object, publicity rights are irrelevant. But a photo of a person may not be available for ripping, mixing, and burning in “commercial” contexts, despite its being Creative-Commons licensed.