Are US residents allow to participate in this ICO?
idk why they would not be allowed
Because SEC won't allow most of the ICO's to get investments from US citizens. There are many countries who have put harsh regulations for projects to run their token sale these days.
Just buy after the ICO, the chance is big it will be under ICO price if you look at the bear market now
The public ICO will be held in april, so there are still so much times to see where the market will go.
I just hope these bad things wont last long.