I dont want to start a flame war with you or anyone but, you have way less chance of people liking your server if you have that attitude against any criticism.
Insulting everyone is not the way, you could just ignore them if they are rude, or better yet, stay calmed and ask them politely to tell you the flaws they found on your server so you can improve. If they dont answer or they continue attacking you, then it will just show how immature they are and their posts will have no credibility, so dont let it affect you, your posts are the ones with the most credibility here, you choose which image to give to the new "possible" players looking at this thread.
You aint going anywhere if you keep doing it like this. Im pretty sure nobody likes to play a server where the Admin responds with a defensive position in a offensive way to any opinion that differs his's. At least certainly I dont.
Again, this post is intended to be a constructive criticism for your attitude. Not about starting a flame war which I wont follow. You might listen, or do what you want, its your server after all.
PS: Insulting/attacking me would be pointless so dont bother.
Cheers~