== This page is ridiculous == 

 First, the Bad Brains back in 1979 were spreading the idea of PMA, Positive Mental Attitude, which significant in two ways, because not only is it the beginning of positive hardcore, but because the Bad Brains practically invented hardcore music, period. It is nearly impossible to overemphasize how influential their message became in the early hardcore punk scene. They inspired bands like Minor Threat and various Better Youth Organizations. 

 As a side note, it is alarming to me that not one reference is made on the Bad Brains page about their philosophy (inspired by Napoleon Hill's "Think and Grow Rich") which was in so many of their songs lyrics (such as "Attitude") 

 Anyway, the article is inaccurate; positive hardcore is not a response to straight edge, which came later. Rather, straight edge was seen as an extension, or subset, of positive minded hardcore.  

 Whatever references claim otherwise are mistaken and uninformed.  "Positive hardcore", unlike straight edge, has no definite boundaries or rules that must apply across the board. Minor Threat (who were straight edge) was as much a positive hardcore band as 7 Seconds and Token Entry (neither of which was ever straight edge) and as much as a band like the Bad Brains (who used marijuana). And while the Bad Brains preached unity and positivity, they were also famously known for the nasty scandal with the Big Boys. So, there's no rules to really outline who "qualifies" or doesn't as positive hardcore. 

 "Posicore," on the other hand, became a term used beginning around the early to mid 90's to describe bands playing in the "youth crew" style popularized by straight edge bands on Revelation Records or Wishingwell Records and so on. 

 Personally, I think this page is kind of silly and unnecessary if it omits the larger historical backdrop, namely, what was at least originally, the influence and spread of a positive viewpoint espoused by the Bad Brains. There is already pages dedicated to straight edge, under which "posicore" falls as a sub category. There are a plethora of references and books detailing the history of hardcore that could be cited. American Hardcore by Stephen Blush or Dance of Days by Mark Anderson and Mark Jenkins are two well known sources.