Could you just buy one of those antivirus products with parental control features, and crank up its controls? Or perhaps some browser plugin? Filtering bad words is probably not something you should trust an individual site to do, but instead do it on your computer to make it work the same on sites, using your preferred settings. (For the same reason why individual sites should not implement those stupid unusable javascript popdown menus and crazy css-forced layouts with unreadable overlapping text lines and fancy hypertext editors, but should instead leave these features to the browsers so each individual user can set them up to how they like to use it; and for the same reason why text configuration files you can edit with your favourite editor are better than messed up custom configuration dialog boxes in every application.)
