"arton" (who is also a user on Twitter) has been ++'ed 2 times and --'ed 0 times by a total of 2 people.
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Operation Sign, User and Reason
++'ed by YaSuYuKi
Tweet: お、ActiveScriptRuby1.8.7がリリースされた。@arton++
++'ed by kdmsnr
Tweet: arton++