More than 90 % altcoin are scam. So be very careful. Do you know how to find a good altcoin?
Yup many new emerging coins are shit coins.A good coin can be identified as
1. Having specific idea
2. Well defined white paper
3. Well experienced development team.
4. Well defined website having all the related information
5. High adoptibility by the community.
If you find the above mentioned qualities in an Altcoin then you should invest in it.
I did experience investing an ICO with all that criteria but it turns out to be a scam ICO, well some of its team member are now in jail.
but thats not all that can identify a prosperous ICO. you might want to look what their product can give to the market,,,, but still its up to the team on how they play on their game. just sayin.
So did you invest in CENTRA? Because their owners and the team members got caught and they are in jail right now.
But for me, i never had any issues at all investing in ICOS.