I don't think we post any details about the exploit, just the fact that someone reported it (see https://www.facebook.com/whitehat). Of course, once we've fixed the bug, the reporter is free to write about the exploit, how long it was live, etc.
I think what the OP is trying to say, is that Fackbook (as the custodian of our private data) should make available a list of resolved exploits such that we may be aware of potential data leaks.
Eg - up until today, and for who knows how long, photos you thought were private may have been accessed by undesireables.
