If you have made a post with the username "LoyceV" in the past, and now have changed your name to "LoyceV2", if I quote the post from the past, the username should be "LoyceV" in the quote in my post, but if I quote a latest post when your username is now "LoyceV2", the username should be "LoyceV2" by default.
Whether you quote a post made before the name change or after the name change, you will see LoyceV2 in your quote by default.
If you have quoted a post before the name change, you will still see the old name even after the name change.
Are you saying that should work differently?