If you are using or demonstrating the Linguist's Search Engine for others or are otherwise in a setting where having the search engine return potentially offensive content could prove uncomfortable or embarrassing, you can turn on the Offensive Content Filter by checking the Filter Offensive Content checkbox. This applies a simple keyword-based scheme to sentences and URLs to hide results. If a particular result was filtered, its entry will still appear in the results but the sentence will be hidden and display ``Filtered Content'' instead. Unchecking the checkbox will immediately display any filtered results.
As with any keyword-based scheme, the filter is not foolproof, but it seems to work fairly well in practice.