Also, what should Facebook tell you? Worst case you don't hire someone because you don't agree with their political views or hobbies even if they'd never brough

Also, what should Facebook tell you? Worst case you don't hire someone because you don't agree with their political views or hobbies even if they'd never brought that up during employment. A public web search can make sense in cases where clients would also potentially google your employees (e.g. sales reps or managers). But for a developer that shouldn't play a role.