what he said is his opinion, though negative and does not help improve the map, he is in the wrong here.
spacebrick has full right to permaban him if he does not want him on there, either.
/nosupport
Just because its your server doesnt mean its morally acceptable to do whatever you want and stuff fling bans around like an deranged ape. However, A permaban was an extreme punishment, but that doesnt mean you can join a server and insult the hosts work and expect to be let off without any sort of punishment, regardless of whether its honesty or not. There is a fine line between honesty and being an starfish, you cant insult your wifes cooking and then expect her not to get pissed off at you and make you sleep on the loving sofa.
/nosupport