Link the Article

freak3dot · Mar 6, 2014 · a21fec2 · a21fec2
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 The website still gets trackback spam. That's harder to figure out a
 solution, because a trackback is sort of meant to be done by computers.
 Really the only solution for trackback spam is to turn off trackbacks. 
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+More information about the concepts at work here: http://www.smartfile.com/blog/captchas-dont-work-how-to-trick-spam-bots-with-a-smarter-honey-pot/