I know I've only been here a week, but lemme give all you peeps some advice. Be yourself and if you get banned, then fuck it - there's plenty other sites to go to. If you're involved in a creative environment, but are afraid to say things or talk about things for fear of being banned then staying isn't worth it. 

No matter how much work you put into this place, or time you devote to it, unless you own the site then being a member here is a "blessing not a right". There are no laws stating that they have to do anything when it comes to whom they ban. 

Personally I haven't had any problems here yet, being new, but already this place looks a little shady based on the mod's responses. 

A lot of websites have a Ban List, with the name of the user and a pic/link to the post that got them banned. Nothing else said about it. It's a locked thread so no one can reply to it. This is a great idea because it will stop the questioning of your judgments AND make sure the mod's can't abuse their power because they have to show the proof of their actions. 

And people should be able to make appeals for others, especially if they have evidence. There's really no legitimate reason to not allow that, except for the fact that you don't want to.