Question

Lets say one answer i saw is copied and pasted. how do i improve it? Is it okay to completely erase what the original author has written?

Answer 1

The best thing to do is flag the answer for plagiarism.

Explanation:

When you see an answer that contains entire paragraphs copied from other websites, your go-to option will be the Check for plagiarism flag.

This is true for copy/paste answers that have a link to the original source as well.

So, if you spot such an answer, flag it for plagiarism. Once we see the flag, we'll take a look an take imediate action - if the situation calls for it.

In the meantime, if you want to answer that respective question, do so in a separate answer.