Today I read a post on a Facebook-group about a "problem" with links posted to Facebook.
Appearently when you post a link at Facebook, the sites goes through the redirect(s) that may be on the site which is linked to in the first place (link to phishers site --> redirect to legitimate site = facebook shows content of legitimate site).
If the owner of the first site afterwards remove the redirect, you will now have a link looking quite legitimate (depending on the site to which you redirect initially), but may be a scam phishing site!
I am far away from being deep into security matters, but this seems rather stupid to me and as a obvious problem with eg. contest pages or "Like if you also like turtles"-pages.
Why do Facebook have this "feature" and how could they eventually avoid it (updating link regularly or by request or similar)?