if the project was posted or promoted by someone who has a high level of positive trust, then the ICO is definitely good.
Well, it depends
if I do trust someone it does not necessary mean that this person would never be mistaken or even can not decide to "sell" this trust one day even though he will have to scam for that - tens or hundreds million dollars can make someone really mad
i prefer making my investment decisions by my own rather than running for a crowd