99% of directories are nothing more than “human scraped” sites, listing exactly the descriptions that are submitted, so they have 99% duplicated content.
I have built a
list of directories that have a rewrite policy of descriptions.
Offcourse I have been
totally slaughtered at DP, some even went as far as calling me “Nazi”

for making such a small list, it’s not my fault the list is small and I am very permissive, if I only accept 100% copyscape tested sites the list would go to 2-3.
If search engines tight the duplicated content filter a loot of pages will go supplemental or even lose cache, people don’t seen to understand this.