The documentation for ~TiddlyWiki tries to follow the following guidelines. The aim is to ensure that documentation from different authors reads consistently.
# Do address the reader directly as "you"
# Avoid the [[passive voice|http://grammar.ccc.commnet.edu/grammar/passive.htm]] in tutorial and introductory material
# Do use [[British spellings in preference to US spellings|http://en.wikipedia.org/wiki/American_and_British_English_spelling_differences]]