I’m sorry but your argument simply does not stand. Scammers usually steal high-quality work and pass this off as their own. All the videos you are citing look home made from every level. What is more, using freemake to edit or convert a video, would support this argument.
You have a video gig which features a person who is not you and a pop up animated character. How can that work possibly be yours? It looks like you have gone to Youtube, stolen someones work and inserted a stock vector of an illustrated character and made the mouth move.
See how easy it is to groundlessly attack someone?
You know nothing about how this seller creates the work they do. My personal impression is that with regard to light dancers, this is footage of a single amateur dancer (likely the seller) edited together using a low budget or free video editing program like freemake. - Hence the watermark.
People like yourself are very dangerous. Like I have said. If you have a problem with this seller, either contact them directly or at least present some evidence of your claims. As it is, it seems like you know nothing about video work yourself, but how to attack your competition.
Find the original footage of the light dancers or rappers online. See if this footage is available for sale, as freestock footage, what any license terms might be, then provide evidence that these terms are being broken. If you can do that, you can argue a case for a seller being a scammer. If you can’t, you are just being unnecessarily antagonistic and defamatory.
