This may just be my personal preference, but please don't delete comments like you did above just because someone made a "good point" that convinced you you wer

This may just be my personal preference, but please don't delete comments like you did above just because someone made a "good point" that convinced you you were wrong. If you want to retract it, edit it so there's a line at the top saying that you retract it. Even wrong opinions (I'm assuming it was "wrong" for the sake of discussion) can contribute to a discussion.