how to determine ico is good or bad, i have a lot of loss, because its price drop when entering exchange, please help me friend
You must read their campaign carefully and understand it fully. You must need to check their site (if there is any) or maybe their white paper and also the team leader or the ICO. You can search their ICO and you can determine if their ICO is good or bad. You can look up the details from the very beginning of their ICO and their actual thread here.