"mattn_jp" (who is also a user on Twitter) has been ++'ed 3 times and --'ed 0 times by a total of 3 people.
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Operation Sign, User and Reason
++'ed by ku (これでfirefoxからschwartzのジョブ追加したりできるっす)
Tweet: mattn_jp++ これでfirefoxからschwartzのジョブ追加したりできるっす
++'ed by skashu
Tweet: mattn_jp++
++'ed by tyoro
Tweet: mattn_jp++