It's the curiosity and uniqueness of the technology but with the technology comes scams. I don't often pay attention to projects with too much hype. Especially if the hype is all they have going for them. Like you say those very likely turn into scams. The easiest way to figure out if it is a scam is to see if the hype is caused by people making profits. Think of scams like bitconnect. The good returns cause much of the hype it had and people saw it working and didn't care where the money really came from.
Can't disagree with that one. Greed is a huge trap for herds of thirsty pollywogs, and scammers know this better than anybody