O noes gais, we cant join bcus the I'd is above 20,000
But seriously, if he is just bored and thinks the server is good, just join and try it out. You can at least humor him before shouting "oh you noob go die". That is bad forming IMHO.
Just give him a shot, you were all probably the same way when you were a little less experienced with the older players back in day.
EDIT: I know it was yesterday, just wanted to get my thoughts in.