Yes, it's safe because now so many altcoins are the cheapest. Although how did you find out that "Zero" is a promising altcoins? We will understand our mistakes when the current bull run is over. New investors will be scams by investing in scam projects. We can't trust old projects even if they were Binance listed (Like PPT). We shouldn't buy the very cheapest coins under 200-300 altcoins that are safe.