How come spammers seem to always resurrect old threads? Why not tag onto to current? I would think either way their post would be viewed. Of course, their link not clicked..
The spam is not aimed at humans. It is supposed to elevate page rank of the linked page, so it shows higher on the organic side of search results.
Old threads are seasoned and their page rank is higher than the page rank of a new thread.
Most of the work is automated. That is why the spam messages are broken English – there are tools that will randomize spam posts by replacing words with synonyms to avoid duplication.
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