Is a good article but misses out many of the 'scams' we in the crypto world have seen and learnt to avoid, there is a simple rule (aside from fake wallets) in that with these schemes, if they are too good to be true, then this is probably the case.
Due diligence and research will save many from losing coin and letting the scammers take control. You can even ask opinions on forums such and this and even social media, there are some site that highlight the scams too to try and at least warn others of the pitfalls out there..