Differences between www.openbsd.org and openbsd.org

[stupidmail4me]

Look at the differences between:
http://openbsd.org/faq/pf/rdr.html and
http://www.openbsd.org/faq/pf/rdr.html

The difference is drastic. Information on www.openbsd.org leads to errors. Why 
are these pages different?