I have add this on my posts an even used the plugin recommended in support for wordpress https://wordpress.org/extend/plugins/facebook-revised-open-graph-meta-tag/
The comment box is not popping up when I click the like button on posts. I even tried using a different plugin but that still did not work.
Example url: http://www.evilshenanigans.com/2009/03/stove-top-macaroni-and-cheese/
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