Where is the Delete Bottom to erase comments?
Next to the Comment Session there should be a Delete bottom for Past Comments you would like to Delete.... Why Keep a Tally of All of the Comments you've Made...No Need!

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SavvyCat commented
Why do you want to delete your comments? They are part of the conversation, unless you're one of those who posts sound bites and slogans, and you don't actually have the courage of your convictions. You can delete your individual comments, but personally I think once someone responds you should not be able to delete, because people should have the expectation that what *they* add to the conversation should stay. Yahoo should only be removing those that violate the TOS. (And I wish they would actually start enforcing that.)