Over at sageru.org
I use a hacked verson of Kareha that removes dates and makes the rules section user-editable [1]. It also scrambles the thread identifiers (which are normally the thread creation time) so the age of threads cannot be inferred.
It also has a couple custom CSS stylesheets, mainly 7chan
, Overchan
, and MWN
. Feel free to take the first two for your site, if interested.