Does a duplicate question by definition not mean that the answers for that question already exist? The marking even says:
This question already has an answer here:
Looking at the questions on the stack right now, I am taking this question as an example:
How to encourage or triggers others to help me when everyone seems busy with their task
Even if it was answered before being marked as duplicate, don't we want to delete answers to questions which we mark as duplicate? If not, what's the point of marking a question as duplicate? Wouldn't it make more sense to mark it as
'hey other answers to a similar question here:'