In fall 2009, some English Wikipedians surfaced an important issue, but apparently did not find a way to get any action taken on their conclusions.
The "Special:PrefixIndex" function, which is only a couple clicks away from any page, by default includes a listing of all mainspace articles, alphabetically. Thus, on English Wikipedia, it starts with "!Fuck You!", a thrash metal album.
The Wikipedians discussing this suggested that the initial view of the "Special:PrefixIndex" page should not include ANY articles until a search string has been entered. Seems perfectly reasonable, but needs a techy to implement.