Well I think that is one of the great things about Snapzu's core system: it encourages adding sources and such, there is actually a mechanism built in to do it. Reddit's lack of such a mechanism is probably one of the reasons it has that reputation.
Yeah, if you want to include a source you just have to post a comment with the link and hope it stays at the top. The amount of periphery modules on Snapzu really make for more quality posts.
And that's the worst. Here, related articles can be freely posted right to the main post where they won't get buried, as well as the sources. This really is a fantastic system they have.
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