This question is more specifically for Nintex Live form.
The challenge is that as oppose to an internal SharePoint form, when a Nintex live form is submitted, the system use the form publisher's SharePoint account (my account in this case) to create the item.
In case my AD account is expired/disabled for any reason (lets say if I am leaving the organisaion), I guess the system will prevent the Nintex live form from creating an item in the list because the publisher's account is no longer valid.
If that's the case, the only workaround I can think of is to create a system/admin account, and use it to publish the Nintex live form.
I am wondering if there is another approach to tackle this issue.