✔ 最佳答案
The 'questions are deleted after 4 days' is now being put on all appeals, since people seem to keep appealing questions that were removed due to no answers, by mistake.
As for appealing, they will NOT tell you the reason. They are not allowed to. To appeal, you can't ASK why it happened. You have to politely and clearly explain to THEM exactly why what you posted was NOT a violation. That is how they know that YOU know the rules and are sticking to them.
If you want to know WHY something was deleted as a violation, you have several options. (1) post the content to the Suggestion Forum and ask the folks there for input -- they know a lot about it. (2) post the content to somebody with a LOT of experience on the site and an open email link (like me) for an explanation.