"kakutani" (who is also a user on Twitter) has been ++'ed 2 times and --'ed 0 times by a total of 2 people.
Activity Feed icon
Operation Sign, User and Reason
++'ed by _tad_
Tweet: RubyConfで@kakutaniさんがRubyKaigiの宣伝をしてきてくれたらしい。 kakutani++
++'ed by None
Tweet: kakutani++ kompiro++