Electroboom is very entertaining and knowledgable, but it bugs me that he purposely shocks himself almost every episode. His safety practices are terrible. I get that that's part of the joke, and as long as you know it's a joke, fine. But somebody who doesn't get the joke and tries to copy him could get hurt.
Of course this is Youtube, so anybody who blindly copies anything there is asking for trouble.
My perception of Electroboom is that he makes it blindingly obvious why you shouldn't blindly copy him: as you say, he shocks himself in almost every episode. To me, at least, the message is that if you try to do what he does, you'll get shocked, and if you don't know exactly what you're doing, those shocks can kill you (surely he very carefully calculates how much he's going to injure himself?). I find that message makes me much more careful than the generic "don't try this at home unless you know what you're doing", where I don't really have a good way to assess whether I know what I'm doing.
Of course this is Youtube, so anybody who blindly copies anything there is asking for trouble.