And it's known that what Facebook does is ugly. So Hanlon's Razor and all that, but given recent events it strains credulity that the developers weren't at least suspicious.
Often the developers are aware of, or at least suspect these types of things.
However, it's the Project Managers and Product Owners that are not aware and they say "do it because that's what the customer wants!" and you can argue. You really do so at your own peril if you don't have others on the team to back you up.
