I've seen this happen to other sites, something angers the Google algo and organic traffic falls off a cliff. History seems to bear out that SO correctly ident

I've seen this happen to other sites, something angers the Google algo and organic traffic falls off a cliff. History seems to bear out that SO correctly identified the source of the "problem", and SO is such a valuable resource that I'd rather it be Google-visible over passing pagerank. This is the problem when you have a single player dominating the search space with an opaque algo and a very limited appeals process.