Today, an increasing number of research papers are publicly available. At the same time, a community of researchers and students are reading those materials. We are highlighting, commenting, finding connections between topics, contradicting... in general digesting that knowledge.
Where does all that information go? Is there a project/app/platform that allows me to access the comments and annotations of those who read the papers before me? Something like a line comment on github.
Being science a collective endeavour, why is something like that not the standard way of doing research?
Am I missing something?