content: It's those useless people who steal someones work and then every so often interject. Reaction videos with idiotic reactions that add no value, listening to music and having small tidbits reactions to it. In other words, they aren't original and they aren't really watched, they get accident traffic intended for the original video and most who arrive on such videos click backwards to get away from it.  If anything, from a marketing standpoint, a company wants the original video to have their ads on, not some useless parasite, which in this sense they're increasing the quality of their platform to increase ad revenue spending and value.