I never do that, because I'm too afraid. I have heard a lot of ICOs who made sweet promises at the beginning, but in the end the project became a scam or the activity from the team became lack. Then there appear many complaints from users who participated. Seeing a lot of people screaming regretfully, I think it's better not to try it
i think taht i have seen a lot pf people making money from icos aso there is noting to be surprised about in this
well of cpurse you just need to be careful nd do not invest i scam icos as it is really dangerous especially right now