Webmasters is such a small target audience. Is it really for them? I just visited a bunch of these sites which all look exactly same and didn't even open any vi

Webmasters is such a small target audience. Is it really for them? I just visited a bunch of these sites which all look exactly same and didn't even open any video. I was just frustrated to see the backlinks from originating from absolute irrelevant place and going to exclude them. But probably you are right. If it doesn't cost them anything then why not. Someone will visit or may even share those links. That's what spam is for.