Poramin Insom is a good developer who did a lot for Vertcoin, but not enough! it is very wrong, and he began to make other coins .... but without success. Here is Zerovert from 2014 with Zerocoin Protocol - https://bitcointalk.org/index.php?topic=846471.0 - the coin is an abandoned
Also big investors lost confidence in Poramin Insom, because he dropped other coins with premine!