Because many irresponsible people want to take benefits from crypto growth and they dont have real project. Some ICOs very slow when want to land on exchanger and it make investor waiting too long.
Irresponsible indeed and I must say it is just something we will have to get accustomed to until the space becomes regulated.
As it is usually said, in a lawless country, there is no sin, and this space is more like a lawless space, and no one considering where such activities would land them if they ever try it in the real world.
I still so much believe that with regulation a whole lot of things would change. ICO investments will always be risky at this point for those who are actually not doing proper research before they end up in a project. That idea in the mind of scammers that there are still gullible investors is what has been keeping them going and until we start having that out of the way, it would be hard not to keep seeing them until we see the space being regulated.