If he was such a good leader, then he wouldn't need to prevent people from leaving by force.

Cao de Benós founded the Korea Friendship Association in 2000, purchasing and establishing his privately owned domain name which whilst claiming to be officially sanctioned is privately owned and registered in his name.[2][6] All official government and ministerial sites of North Korea have the .kp domain and, given the WHOIS record for KFA's website points towards it being the personally owned domain of Cao de Benós, there is doubt about its claim to be the "official web page of DPR of Korea" and thus Cao de Benós's claims of his actual status in North Korea's hierarchy.[2][7] - Wikipedia (Alejandro Cao de Benós)

As most have pointed out, this is seemingly just some guys little passion project