Not useful topic at all. ICO's isn't belongs to earning site, ICO's is a project that are raising fund from people's. And for people's ICO's is a investment project. You will not able to earn from ICO's directly. You will won tokens and you are the owner of that. You will only be able to trade it on digital exchange (if listed on exchange). So we really can't called it earning site.
My suggestion, better to stay away from ICO's now. Most of them are scam.