+This has changed its meaning from the master release. All words entered
+are reduced to the minimum regex that will match words starting like
+this one:
+
+ set/badword annihilate
+
+will stop anything that starts with these words in the text
+like this:
+
+ annihilate annihilated
+
+but it will also stop things like this:
+
+ anihilate annni11ihhh ii lllattt eee
+
+A few common 'leet' substitutions are automatically matched:
+
+ b0ll0cks bo0lll0ccckks fr1iigging
+
+and so on