understood your concern. So investing in the ICO/IPO is really risky. Especially for the average ppl, they don't have the inside information and any thing about the projects except the campaign materials provided by the so called teams. So if you cannot tolerate the associated risk, you'd better go away with it.
That's like saying "If you can't tolerate the risk of scam penny stocks, you'd better stay away from it"
Those things aren't trying to build a real and lasting company that provides value to the world - they are trying to extract wealth from suckers. Ask yourself, is your blockchain startup trying to create something real or extract wealth from suckers?