I like the idea of visually representing the concept, perhaps consider even more implementation i.e. planets colour based upon credibility, size based upon number of views, position based upon article age, connectivity and proximity of planets based upon hyperlinked articles or related posts etc.
A user should still be able to quickly navigate to articles of interest to them and if the visual exploration of it gets in the way many users may be turned off by the design.
Also perhaps consider simply applying your visual idea to an existing forum or network, rather than providing a stand-alone space that requires its own posts.
I like the idea of visually representing the concept, perhaps consider even more implementation i.e. planets colour based upon credibility, size based upon number of views, position based upon article age, connectivity and proximity of planets based upon hyperlinked articles or related posts etc.
A user should still be able to quickly navigate to articles of interest to them and if the visual exploration of it gets in the way many users may be turned off by the design.
Also perhaps consider simply applying your visual idea to an existing forum or network, rather than providing a stand-alone space that requires its own posts.