What should I do when my answer is being down voted? Should I delete it? Because if I leave it, more users will just down vote it, which costs reputation. But if I delete it any (possibly limited) information that is in my answer and the attached comments will be lost.
For example in this case, mind you my answer isn't very usefull, so I don't disagree with the downvotes, just wondering what I should do with it.
You should take a down-vote as the need to give an answer some attention. Courteous down-voters will tell you what the problem is and (assuming they're right, they might not be) that'll let you know if you should be deleting or improving your answer.
Unfortunately there aren't always comments and you have to use your own judgement. If you can't decide, feel free to ask in here or (for a quicker response) in the chat room.
If the answer is total junk, then delete it. No need to clutter up the page with that kind of thing.
If there is some part of it that is wrong, but the rest is good, then you should edit the answer. You can use the <strike>strikeout</strike> font if you want to show the part that you have corrected.
