totally nope. Dont invest into any ICO without idea about them. you need do many things to make sure they dont scam you. like check their profile, their advisor, their plan, their whitepaper.... many things
I only pariticpare their token sale if I know their project well. For this, I'm reading every single line of their whitepapers. I also learn about team members and see whether the team can do something good in terms of project.