he did not break the anonymity, he said that by himself in the "XC uncensored thread". he had the right answer, that is correct, but he only had the right answer because of scanning the blockchain for a specific amount (he knew how many XC were transferred and so he knew what to look for) and because of the fact that only very very few anon Transactions occured otherwise looking for a given amount of XC won't lead to success. and btw with 0.9.1.37 (correct me atcsecure if i'm wrong) there will be a Feature implemented that splits Transactions (incoming and outgoing) so that chapelins method won't work anymore.