"List" type articles will probably be deleted from Pineapple. Things like "10 best Wordpress plugins" or "15 designer tools to help you".
They generally are low quality and serve primarily as linkbait. In addition, usually only a handful out of the whole bunch are even worth looking at. The preferred method is to find the really good ones in the whole group and submit them individually. Even if all the resources on the list are solid, it goes against the grain of Pineapple which is to provide a database of tools and resources that are easily searchable, as opposed to just another reddit or blog.
I have no system in place (yet) to notify the original poster of why a resource was edited or deleted, but that is a priority so each user can get positive feedback. In the meantime though, this notice serves as a gentle reminder so no one feels their resources are being unfairly edited or removed :)