Suppose, through a process of soft peer reviews, I was able to improve on what I did. At the end, I could then submit the peer reviewed learning material (my shared PLE slice) to the community and let the community rate it.
Suppose you wanted to learn about that particular area. You would go to the virtual learning place, search and find a large number of these shared PLEs with different community ratings. You could pick the one you like the most (i.e. find the most intelligible), import that slice into your own PLE (just like importing a SCORM based course into an LMS maybe, though I know people will dislike that analogy!) and maybe even rate it when you complete.