2. Anonymous project.If you want to scam people, best way to do it is by hiding your identity. Therefore you should never trust a project that does not display its team members, company information nor physical address. No matter how good the project seems, there is a reason why they are hiding their identity.This isnt always the case, I have always felt suspicious of ICOs when they link to the team members linkedin profile. Well, this may be legit in many cases as they want to build a positive trust by showing off the team. But, I also have seen people buying 20-25 old linkedin accounts through this forum.
anonymous team members is the first thing everyone check for before putting any money in any ICO but it's difficult to tell unless you put some time and effort in researching, but that's what you should be doing anyway before putting your money anywhere.