{"items": [{"author": "Allison", "source_link": "https://plus.google.com/103741579182942078941", "anchor": "gp-1317735468467", "service": "gp", "text": "could you use something like \nhttp://alexa.com\n to get the data or at least a portion of it?", "timestamp": 1317735468}, {"author": "Jeff&nbsp;Kaufman", "source_link": "https://plus.google.com/103013777355236494008", "anchor": "gp-1317735706365", "service": "gp", "text": "@allison\n alexa or compete could probably give me information on the web portion (not mailing lists, though), but I don't know how far back they keep their data.  I also think they wouldn't be able to see things like the fraction of 2002 slashdot readers that became 2010 hn readers because I don't think they have user identity over such a long time period.", "timestamp": 1317735706}, {"author": "David&nbsp;Chudzicki", "source_link": "https://plus.google.com/106120852580068301475", "anchor": "gp-1317736109071", "service": "gp", "text": "\"We don't have position online, but we do have lists, blogs, and forums on which we can participate actively.\"\n<br>\n<br>\nYeah -- and unsubscribing or filtering (usually my preference) a mailing list is a lot like stepping away in position.", "timestamp": 1317736109}, {"author": "Monty", "source_link": "https://plus.google.com/106340241694772681105", "anchor": "gp-1514392755218", "service": "gp", "text": "@Jeff&nbsp;Kaufman\n There are probably more than a few people who kept their usernames when migrating from slashdot to hn, and post history was public the last time I checked, so some info could be scraped. Also, text analysis might be able to find probable matches even when usernames changed.", "timestamp": 1514392755}]}