Facebook maintain a strong infrastructure that empowers more than 900 million people community by using the report links found throughout the facebook. While it is unlikely that you will have any problems with the content on facebook.com, it might not always be clear what happens once you do decide to click “Report.”.
Facebook have published a detailed chart , which is actually a guide that will give the people who use Facebook more insight into their reporting process.
Click here to see Large View
I hope this chart will help you how really Facebook reporting works. Many people are worried when they just report on Facebook to get remove their personal photos or any humor related to them. This is very sensitive if facebook process does not work and people get hurt on daily basis by others on miss usage of their photos.
I also think facebook should consider seriously about reporting system as its really sensitive for users.