You can use this list of questions to evaluate ICOs:
- Is it an asset-backed security?
Most exchanges require a securities license before they can list securities and most do not have it. Stay away from ICOs which are securities.
- Can this be replaced with a system similar to airmiles?
If the biz model can still work with a points system instead of tokens, then its a sign that they are just coming into cryptocurrencies to cashgrab.
- Is the blockchain required
If the infrastructure can work without a blockchain, then its also a signal that it is a cashgrab
- Are the team member resumes strong? - have they achieved things before, or are they still in university studying?
- Are they already in a successful business, got network and contacts to make it, see it through?
- Is there are strong business case?
- Do they have an idea which is implementable in reality? Can the concept be integrated in real life?
- Is there a monetisation model? Revenue / Cash flow?
- How easy or difficult is the entry barrier? Can it be easily copied?
- Does the model require tokenization to work?
Crypto is more about investing so I would come directly to the main questions. What are the coins that can make a person rich if invested in them and after how much time he would see some real profit? Bitcoin is the most potential coin and it can give biggest amounts of profit in very small time. But it is not a cheap asset at all. Ethereum and Litecoin are also good for investing money.