Have you heard of get-rich-quick schemes ? what do you think of them ? aren't they a very clear example of unhealthy - ?
Although you're not likely to win any money with them, their advertising is VERY VERY VERY funny you know... They say "Get monthly $80'000 in 30 minutes a day" or "Don't believe other get-rich-quick schemes, they are scams, the only non-scam is ours" or "Invest $15 and they'll become $759'375 in 5 years" or such.
I don't really like scams, but scams are very amusing lol...
I won't give any URL's here - you'll find GRQ websites easily on Google. They all look the same. I don't think experienced internauts are interested by such schemes. But when you watch them - be VERY VERY CAUTIOUS and DO NOT SPEND A CENT.