Oh, we can agree with more than just no keyloggers! I like Macs also! A while back I was starting to get pretty upset when the word 'Computer' was dropped from Apple's name and I was starting to wonder what was going on. I did not like the idea of being left high and dry. But Apple may have 15% of the consumer computer market in the USA possibly right now and if not maybe not so long in the future. So it looks like they still still care about computers.
I like Windows and Mac and probably someday I should go with just one but I can't make up my mind which one to go with. They both have good and bad points. Even if I decided to go just with Windows I would not want for Apple to go out of business. Microsoft needs competition.
Getting back to keyloggers I feel there should be trust in a family. Now there may be a child, boy or girl, that you just can't trust. If somebody is that bad don't allow them to use the computer, or at any rate the internet. Heck, a Mac can be set up so that the child you can't trust can still have an account but can't use the internet at all. Or if a child is too young don't allow them to use the internet on their account and use the internet with them on your own account (supervised at all times). I don't like the idea of spying on people unless you simply have to. You definitely need to think twice (or several times) before spying on a wife or a girlfriend. I have seen at least one commercial keylogger at an Apple Store and I have heard there are three or four legal keyloggers for Macs that you can buy. And there are keyloggers for Windows also.
All bets are off when it comes to national security. I don't have a problem with terrorists being watched. Better that than another 9-11.