Justice...

You're able to post in Ban Appeals if you have information relevant to the person. Such as, if you were in the server you can reply to them, if you want to post his ban information that's fine too, or if you want to point out something wrong with their post or explain to them why what they did got them banned that's pretty much fine too.

Just don't go in there posting 'lol pwned' or 'idiot' and so on, only things that are relevant.