In a, Petko wrote:
00:27 by Petko - as local and cookbook come with .htaccess, do we need to tell people to manually add them?
I think so. The reason is because their wiki could be part of farm, in which case the local/ and cookbook/ directories would not be the ones distributed with PmWiki.
See also: http://www.pmwiki.org/wiki/Cookbook/FarmSetupByExample#deny_dir_access