This policy was created in 2009 in response to the controversy when NoScript started messing around with ABP and broke functionality so that ads would display on the NoScript developer's website.
Wow, thank you for posting that. Very informative. The post and the NoScript reply [1] both raise some interesting points about how to compensate plugin authors for their hard and continued work that seem like they're still not addressed six years later. I have never really stopped to consider either compensating plugin for their work and I rely on them daily.
https://adblockplus.org/blog/attention-noscript-users
https://blog.mozilla.org/addons/2009/05/01/no-surprises/