Most people still underestimate the dangers of net transparency. As one can read in this article of the Guardian, some students of the University of Oxford were caught by proctors who found the relevant evidence on facebook.

Students now face fines of up to £100 after proctors collected evidence of students celebrating the end of exams by „trashing“ their friends, covering them with champagne, confetti, flour, and even foodstuffs including raw meat and octopus. […] „Somehow the proctors have accessed my photos on Facebook and cited them as evidence of my misconduct, and I am being summoned to a disciplinary hearing.“ „I don’t know how this happened, especially as my privacy settings were such that only my friends and students in my networks could view my photos“.

I keep telling everyone to be really careful with what they put on the web. Don’t put up pictures or videos of friends who didn’t agree – and also don’t put up pictures of your kids – they might not like that in 20 years time.

You never know, whether things like the abovementioned might be possible. Or for how long your content will stay in the Google archive. Or whether or not a site will end up in the archives of archive.org and possibly stay there forever. Web content is more permanent than most people realize.