WotLK Getting banned without being shown where did you go wrong is unfair.

[Rashad249]

it would be nice if GM would provide a screenshot/prove of where I went wrong so I would know and maybe I can have some explaining to do. else how am i supposed to learn from my mistakes ahaha

[Palutena]

We don't show the evidence because it can lead to retaliation to the reporter. And even if it was the GM him/herself who caught you breaking the rule, it is still counterproductive to show, as you will look for a way to "hide it" better. The ban reason is about enough for you to know and learn.

"cheating", mean you were hacking, using bot, avoiding the kick from battleground etc.
"advertising", implied.
and so on.

There are very few cases where a better description is valid, when the person can make a ban appeal, but they are rare.