2008/10/7 Andrew Gray shimgray@gmail.com:
"People can be misled by incomplete information as well as inaccurate information (cf. Frické and Fallis 2004, 240). Even if Wikipedia includes only accurate information, if its omissions tend to mislead people, it may not be a reliable information source ... Hence, important omissions should be flagged as well as inaccuracies."
1) Wikipedia is written to a large extent by the type of nerds who like complete sets. Thus for example even stations so obscure that they never actually got built get a mention:
http://en.wikipedia.org/wiki/Closed_London_Underground_stations#Central_Line...
We don't quite get as far as the stations that never actually existed (the secret BBC one for example) but I'm sure we will in time.
2)The tag for important omissions is {{NPOV}}.