Interesting blog. Thanks for bringing this to our attention. The trustworthiness of the crypto is based on: A solid team, product, advisors, preferably VC investors, etc. Sell all cryptos that don't have this solid background. It's a waiste of money. I found this great website: https://www.coincheckup.com. Every single coin can be analysed here based on: the team, the product, advisors, community, the business and the business model and much more. On: https://www.coincheckup.com/coins/BlackCoin#analysis To watch BlackCoin Investment research report.