That about only using official registered wifi spots is frankly bollocks... There is no official register of free hot spots.. I can allow people (any one I like) to use my wifi, and there is nothing stopping me - apart from the broadband contract might not allow it.
There are people who share and enjoy their wifi, do to others as you'd have them do to you. I've used other peoples wifi without them knowing - but so does that kid waiting at the bus stop with their PSP, surfing the net on their neighbours wifi. Hardly a criminal offence, and hardly comparable to going into anyones home.
The only way you can compare it to going into someones home is to say the home in question had a HUGE sign above the open door - 'please come in'. And then once inside, a bouncer tells you to get out because even though you were allowed in, they don't like your face and you aren't welcome.
After all, anyone with an open wifi might well be sharing it with their neighbours or friends - against the terms and conditions of their agreement and equally naughty. They might not want strangers using it, but that's what passwords are for.
Why should it default to 'everyone is stupid' -
I prefer to assume that everyone is generous.
