"kei_koyama" (who is also a user on Twitter and here) has been ++'ed 2 times and --'ed 1 times by a total of 1 people.
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--'ed by maybowjing
Tweet: kei_koyama--
++'ed by maybowjing
Tweet: kei_koyama++
++'ed by maybowjing
Tweet: kei_koyama++++++++++