Yep. It's a wonder anybody bothers making or watching juice reviews. I might as well publish a YouTube channel reviewing breakfast cereals.
But I honestly can't imagine how I'd cope with the ever-changing world of rebuildables without the reviewers and their tutorials. This stuff doesn't come with instructions, after all, and if a device includes a pre-installed coil it's often pure crap. If not for instructional videos, simpletons like me would be totally lost.
It's always seemed a bit strange to me that people go bananas at the very idea that these guys might get a free gadget now and then. They're proving a useful service at no charge to the viewer, so why all the kvetching? I think the top names try to be honest, and I'm sure I've seen less-than-glowing reviews from all of them.