It is just wickedness on the part of mankind. They know from onset that there is nothing they have to offer and yet they will bring their crap to the ICO market where an inexperience and unsuspecting mind will be exploited. You can save yourself the scam problem by doing some due diligence finding out who are the team members, what is the product  that the project want to bring out, will the product add to the good of mankind and this concept of theirs will it be realizable?