Not all ICo´s are scams, but a higher number of them are. People should not generalize that all ICOs are scam simply because they got scammed in a couple of projects. Just be sure to study a project well before investing in it or participate in bounties.
Yes, but even if you doт't know how to Choose projects, then use media resources. A lot of people post articles or videos about projects. Choose for yourself the strategy and do not invest in everything. Diversify risks.