Not that the comparison is equal, but imagine if one day the stackoverflow et al. went dark for good... (horror!) How many important projects would suddenly ne

Not that the comparison is equal, but imagine if one day the stackoverflow et al. went dark for good... (horror!) How many important projects would suddenly need to extend their deadlines, how many hopeful interviews would go bust. How many coding approaches would have to be re-discovered or written anew based on present best-practices. Where all that collective need for "tribal-knowledge" would channel to?