"itati0" (who is also a user on Twitter and here) has been ++'ed 3 times and --'ed 1 times by a total of 3 people.
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Operation Sign, User and Reason
++'ed by h_hiro ([lab])
Tweet: @itati0++ [lab]
++'ed by h_hiro ([lab])
Tweet: @itati0++ [lab]
--'ed by AIce
Tweet: @itati0--
++'ed by syaki
Tweet: itati0++