Which kind information I can get from this form exactly.

Why don't you just ask a question if you're looking for information instead of keeping asking questions about what kind of questions you can ask, and what kind of information you can find? 
I've pointed you to the various channels in the forum and the chat section for pretty much anything.  

If you need further help in how to use a forum i suggest you contact admin again or post a question on how requesting help instead of beating around the bush.