Is Google exploiting the internet community?

[serkant_kar]

Just do a simple search in Google :

site:dmoz.org
vs.
site:directory.google.com

Both are almost identical open directories: DMOZ and Google Directory. Anyway Google gets directory content from DMOZ. Bu you will easily notice that more than half search results of DMOZ are as URL only listing. But I found only 1 URL listing in Google Directory SERPs. How can this happen? Both sites has a PR of 8.

Why does Google decide to delete vast of cashed pages which belongs to DMOZ, but never touchs to its own directory? Isn't Google seems to exploit the web community?