Personally I don't see the value in it but I'm fairly sure that others do. Calling it a scam is not nice. It also would require that you label lots of other things scams as well if you want to apply the same principle to teaching-for-money.
Probably I'm operating a scam (after all, what's the use of telling people things they already should know about the companies they're about to invest in for a fee) as well in your book.
Nobody forces you to sign up for that course, if you don't see the value, don't do it. And if you did sign up for it and you felt it wasn't worth your money then write about it or talk about it. Maybe ask for your money back. Lotteries are borderline scams, 419 schemes, pyramids, MLM, those are all scammy (as are sites that claim to sell you an article when in fact they sell you a subscription).
30x500 is not a scam by any definition that I'm aware of.
Please provide evidence to the contrary, nothing is wrong with teaching people how to run a business for a fee, and if not all of them become millionaires but the course providers to then that's business as usual. Evaluate the course, state what's wrong with it and how it could be improved.
(I have no dog in this particular race but I don't like such terms to be used lightly, especially not about other forum members without there at least being some actual evidence.)
Regarding "only actually familiar with selling online scams" – they don't live of www.30x500.com but of http://letsfreckle.com/
There's gotta be an official name for these. That skinny page with varying font sizes of text images or embedded youtube videos encouraging you to buy/ act now / sign-up for their free newsletter til a big call-to-action at the bottom after scrolling for 10 minutes?
Those pages convert shockingly well. If you follow A/B tests and don't care about aesthetics, that's often where you end up.
There is; long copy sales letters