There's an error. The report button be on to the left of that man... see the one with the medal. make sure you use that one if you report someone. Just trying to help since some ppl may think its the one on the right, which is for repping.
a menu will pop-up. you want to approve if you think their post deserves to be reported immediately. and disapprove is the same as repping. Glad I could help!