You may want to ask this on Yahoo Answers (or better yet stay here and ask and answer questions on WikiAnswers instead of Yahoo Answers :-)
I would guess that since you are the one who wrote the answer Yahoo is giving you the ability to edit or delete it, but is not giving you the ability to edit or delete other people's answers.
Please do not delete answers, but add yours underneath the others. George Lopez.
Please add to the list...Do not delete others's answers!SethStanSaulSeveSeanStigShemSaid
it is basically to help you answers all your unanswered question and to answer question of others
A good site with a question and answer section is the Yahoo Answers. This site answers many questions that website visitors are searching for. Yahoo Answers has a friendly online community that contribute their knowledge so that others may learn from.
I attached the link below, which answers your question as well as others...
All of our answers are given by people from all over the world. Some answers are shared by people with general knowledge, students, some by people who have hobbies in the areas surrounding your question and others are answered by experts.
The answers here come from people and are given in the spirit of helping. If the answer meets your needs then use it, if you question the reliability you can certainly research and improve the answer for others.
I delete inappropriate responses (obscene or derogatory comments) duplicate answers ("yes" or "no" type) and those others which do not appear relevant to the question. Other answers that could be correct or not depending upon the situation of the questioner I leave as is or combine with a similar response. That may or may not be the best solution or even the correct one, but it works for me. I believe this results in responses being understandable and yet no one (hopefully) feels ignored or that their contributions are not valuable.
The members of this site who knows the answers give answers to the questions asked by others.
salmonella, botulism, and others. hope this answers your question.
There are many answers to this question. The main answer would be sensible.The others could belevelheadedrationalsanereasonableshrewdwiseprudentsagacious
I added a related link below that answers your question plus any others you may have.