There are some projects like Sex on the blockchain from a sexshop ico, i do know what has been about that ico, i thought that they rised more than one million dollars from this ridiculous idea.
And there would still be some more projects like this, they are like a plague . But if they are really good projects, then i dont see why they can not develop an idea over the blockchain, it is helping everybody in here at any way.
Agreed with you, is just because " blockchain " is mainstream right now on the internet and there are many scams projects based on.