You are thinking about blatant watermarks on stock imagery and the like. Movies at the theater[1] and streaming videos[2] absolutely contain subtle visible wate

You are thinking about blatant watermarks on stock imagery and the like. Movies at the theater[1] and streaming videos[2] absolutely contain subtle visible watermarks even though you are paying to see them, which is directly analogous to having audible watermarks on Spotify. In the case of movie theaters we are somewhat desensitized to them, as old projection technologies used similar flashing dots for other reasons, like a cue to the projectionist to get the next reel ready[3]. [1] https://creativepro.com/major-movie-studios-specify-digital-watermarking-for-digital-cinema/ https://creativepro.com/major-movie-studios-specify-digital-... [2] https://partnerhelp.netflixstudios.com/hc/en-us/articles/4406860887187-Improved-Netflix-Proxies https://partnerhelp.netflixstudios.com/hc/en-us/articles/440... [3]https://en.wikipedia.org/wiki/Cue_mark https://en.wikipedia.org/wiki/Cue_mark