I do not see this project as having any impact on
SEO, as it is operates in a totally different area.
If there are pearls of wisdom to be found in the "grungy pages" as IBM puts it, it may well be applicable to research and branding departments of governments and large coporataions, but not likely to web commerce which is all structured data.
Since there is really no way to optimize unstructured data, like the posts in this forum, I don't see it coming into the
SEO world at all.