In Jira default, reporter field is filled automatically as current user.
And, in default permission scheme, reporter field can be modified by admin only.
I guess, Jira attempt to freeze the information of creator in normal case,
but admin can modify due to management issue.
Why that behavior is default?
Is there some historical or experimental background?
Is there any cons when modifying reporter?
Or, is there any side effects when modifying reporter?