Thank you for the opportunity to help you with your question!
A professional learning community acts exactly like peer review. It constitutes a body of professionals whose opinions, in theory, can be trusted as informed and educated. This is further reinforced by the community nature that acts to allow ideas to be reviewed amongst the many, and not the few.
Such a community brings with it the possibility of crowd-sourced opinions on what works and what does not in their classroom practice. Thus, one idea floated between two teachers becomes several ideas with at least consensus analysis that allows individual teachers to "shop" for things that work and things that have not worked for other professionals.
This works just as well when discussion in that community allows teachers to see what other teachers have tried in their classrooms. This forum of experience allows teachers to look at what does and does not work.
As stated above, a professional community is a forum where multiple opinions allows teachers to evaluate the experience of many, and in a peer-reviewed manner. This is what enables them to identify activities they can replace or de-emphasize within their own curriculum.
Content will be erased after question is completed.