Facebook Like / Share count number suddenly down, per blog post?|Tweet Like Plusone and Share Plugin|Plugin Support Forum|TECHXT

My Facebook Like count per post is suddenly way lower from the usual, even though the same number of people are accessing the page and Liking the link via my Facebook wall. Any ideas why there is this decrease in Like counts?

Did Facebook change policies / the way they count Likes and Shares? Or is there a delay, or glitch with the plugin?