The comment eliciting that effusion came from Ewan McIntosh this morning in the comments section:
If we want independent learners, however, and responsible citizens we need to teach children how to navigate and cope with this creep of inappropriate material, let *them* learn how to deal with it.
I think our duty of protection stretches further than what you suggest. Our duty of protection stretches beyond the school career and into the citizenship of every child. If you haven't learnt how to navigate the appropriate and inappropriate on the web how on earth can you declare yourself fit for 21st Century citizenship?
This is profound in its simplicity. Students rise (or sink) to our level of expectation. The foul language and inappropriate comments on many of the social networking sites come, to some extent, because we haven't taught them any differently, and HAVE taught them that that's what we expect from them on these sites. In the past we spent prodigious amounts of time teaching students to navigate their real-time social networks: how to cope with bullies, sexual harassment, what it means to be a responsible citizen. Can we do any less in the digital world?