[jmolinaso]

Well, one of my habits is to keep those locks and avoid giving the address unless is really necessary. Certainly you can eventually find where I live and pay a visit, but I can ask you politely to leave or call the cops on you if your intentions are hostile, otherwise we can go to a neutral place, have a nice beer and chat about the topic. I see you mix privacy with security, please don't ;-)

Your second point is quite vast to reply here, but one example: think one second of a daughter that she wants to find her favorite princess in the internet without filter you find quite some porn actress with those names, and because are popular ... paaaam first place. Now how I explain to an infant what those girls are doing, wouldn't be easier to wait until she gets the maturity and I can explain better?

The last point, is my opinion nothing more. Is always a trade, it depends how much you will trade.