lots of webmaster try to submit to as much directories as they can.

mostly directories have low Google Trustrank Rank and are general directories that are just build for search engines.

almost all directories don’t have any web traffic at all, so no users are visit this kind of sites and only webmaster that want to submit there site visit this kind of directories.

google start to devalue this directories and your “trust rank score” are demoted so it’s more bad to get this kind of links to promote web sites, so forget about general directories.