What is science?

No.13688437 ViewReplyOriginalReport
How do /sci/ jannies determine what's a scientific thread and what's not? In pic rel you can see an OP posted a peer reviewed science article with science in the URL, regarding bone densities in humans. You can also see OP got banned for posting off-topic. I can only assume that means jannies determined it wasn't a scientific topic. Why? What is science?