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 I suppose I should remind you that "I routinely clean out my talk page, consistent with WP policy. If you wish to keep a copy of something you post here, please copy it to your own page." is not actually correct advice. Nobody need keep such a copy, because all the material anyone has every posted here is available permanently for all the world to see in the edit history. Yes, it's a nuisance needing to go back to it, but it is all thereall anybody need keep tract of is the diff of the edit involved.