If a user asked a question and got an answer which was not helpful.
After sometime the answerer edits the answer with some good content. How the OP will get to know that?
Is it necessary to add comment check my edited answer?
We can say that the OP should refresh the page to find the helpful answer.
Consider if the OP finds the answer as helpful and accepted that. After sometime if the answerer/anyother user edit the answer to change the content which may not solve the issue.
How will it be notified to OP?
currently we are notifying the OP when there is any comment to the queation or any new answers or any comments with the name of OP with @ to any answer.
This will lead the future visitors to confuse and reduce the quality of post.
Can we have a notification to the original poster when the answer to any of his/her question got edited?