Spam and disabling anonymous editing
Spam seems to be quite a problem. Most (all?) of the spam is coming from anonymous accounts. What would other people think about changing the wiki settings so only people logged in can make edits? On many wikis this greatly reduces (but does not necessarily entirely eliminate) spam. --WikiSysop 11:13, 24 June 2009 (UTC) (Michael Nielsen)
It would be cool to have a polymath logo to replace "set $wgLogo to the URL path...".