My friends account was banned, I'm guessing it's permaban as it did not state how long till he can post again.
My friend did not receive any warnings at all or any temp ban.
So I'm wondering what are the grounds for permaban without warning?
Mostly the account will get banned if he copy,paste the post from someone or from the google,and in that case it will be permaban.If you can provide the username then the Mod or the Staff will answer why he was banned.
The other reason that you will get banned if you are involved in the serious trolling but that will be hardly happened.
If that account was banned for spam posting then it maybe the temporary ban so you can wait for the 14 days then login to that account to know about that.