Weak points of LogiLogi: Willingness to share ideas.
An issue that is often brought up by people attending presentations on LogiLogi, is that of whether academics really would want to share their ideas through anything else than credited journal-papers.
I personally think that there are enough academics who have way more ideas than they can turn into journal-papers. Or at least who might be willing to float many ideas before deciding on which of those they want to turn into a full-sized publication.
And that in addition, there are (or should be) enough upcoming academics (intelligent students) with many potentially interesting ideas, but who do not have access to academic journals yet.
Which should, in theory at least (being painfully aware of the tiny number of users LogiLogi has) mean that there are enough people who could benefit from a site such as LogiLogi.