Without being sarcastic, there is, and its the view history & talk pages. Although the other of the original article got in to a disagreement, his revisions and

Without being sarcastic, there is, and its the view history & talk pages. Although the other of the original article got in to a disagreement, his revisions and the arguments he had are now recorded for the duration of history. Personally, I find these pages full of useful information for more obscure topics. I should also add, Wikipedia is the only place I've had a discussions with response times measured in years. That is certainly something unique.