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Re:Ask News.YC: Proposed experiment to test "The PG bias" by technoguyrob on Wednesday April 16, 2008 @10:20PM (#165899)
I admit I am guilty of this. Often I realize it after I clicked vote up, but alas, by then it is too late.
Re:Ask News.YC: Proposed experiment to test "The PG bias" by Jesin on Wednesday April 16, 2008 @10:27PM (#165910)
Yes, the ability to undo a vote would be useful. Shouldn't be that hard to implement, either, given that the site already keeps track of who has upvoted what.

I have also noticed that pg's comments have unusually high ratings, whether or not the actual content was unusually good.