To test whether what the duplicate content really means and whether the Big G will penalize it, I will test one of my site regarding this issue.
I'm submitting all my articles at EZA and Goarticles to other article directories, all original and not spun.
If the Big G penalize me for it, it means the duplicate copies theory is true. But if not, I just hope that it bring more link juice to my site.
Will keep you posted over the result in the coming weeks.