I like the idea of trying to be cautious and all that, but do keep in mind a couple points:
This site is for adults. Our terms of service even states that you must be 13 or older to use the site. Educational resources here are targeted towards adults who will be teaching others, including children.
So I don't expect a lot of youngsters hanging around and reading our threads.
Having said that, I do expect people to be civil and appropriate in their communications on this site. Especially in the sandbox, I'm not afraid to delete stuff that doesn't seem good for the health of the community.