Cam sites use model's images with copyright license.
Affiliates of these respective cam sites receive a sub license for any official offered promotional material from their sponsor.
License to use these copyright licensed images is not revocable by the licensor (the cam model). Often times a cam site will remove these images at some model's request -- as a courtesy -- and not as an obligation.
I am not talking about copyright infringing *pirated* content.
DMCA complaints are made under a penalty of civil perjury.
The reproduction and distribution of any copyright work that is streamed to you with any encryption or copyright protective technology is a civil tort and in extreme circumstances of copyright theft for profit,
18 U.S. Code § 2319 - Criminal infringement of a copyright is a criminal offense.
Capturing cam shows and distributing them for profit can be a
US Federal criminal felony but if you operate outside of the USA and there is not a similar law ... No such laws in Hong Kong or many other places ...
So, Google becomes the policeman of the world and sleaze-ball shysters like Cam Model Protect game the system.
Good night Irene ...