I agree. While reviewing I rewrite and visit the site they are listing. I may add text like; "site contains usefull information about...", or "impressive graphics and lots of fresh content"...
Part of the rewrite is to keep all listing semi-uniform. It is difficult to browse through a directory when each listing looks different.
Some things to do; make phone numbers all use common format, edit titles to all use common case, (e.g. - all are upper, or all mixed --- not some of each). The eye can scan large amounts of info better when there is a pattern, (e.g.- you may be scanning by price, town, telephone area code, etc.. if every listing had those elements in different order or format within the listing, users would have a hard time finding what they want).
No "one liners". No direct sales pitches, (e.g.- "Call us for best price on widgets"), etc.
If the person submitting cuts and pastes a mini-novel, I boil it down to a consistent amounts of text.
I also only keep complete listings, (if I can't find enough info to contact someone at the site or business the site is about, it goes in the scrap heap).
No deep links into "free web page" type sites.
Periodically check if links have died and remove or repair listing.
BTW - Happy Turkey Day 2006!