1. When you need to contribute as a matter of first importance investigate about the specific ico you need to put resources into, endeavor to check their Whitepaper in light of the fact that some ICO duplicate content from another ICO white papers
2. Attempt to check their LinkedIn profile however that does'nt make any difference since some phony LinkedIn profile.
3.Try to know their genuine area despite the fact that some utilization VPN to shroud their area.
4.website expert issues a considerable measure since some don't know how to construct site and they are guaranteeing that they are in to Blockchain
5. Notwithstanding all this..involving in ICO is a major hazard
Well you're correct man , some ICO are not scam and it's a legit and promising project but just be very careful and be sure to make thorough research , before investing on the project .