Easy to delete or alter custom forms

On a recent Ultimate Success call I mentioned that I was concerned about the ease with which it is possible to delete or alter custom forms.  This came of the back of Case Number 00425051 - Accidental deletion of custom form - undelete request, where I had accidentally deleted one of our teams custom forms.  When custom forms are deleted we are required to contact support to get them undeleted, which seems like a step that could be avoided.  As a result I would like to suggest one of the following:

•          Confirm deletion pop up
•          Ability to undelete from the system admin settings menu
•          Custom forms having a ‘lock’ that requires and extra step to unlock

I believe any of the above would have prevented me from deleting the custom form.  In another incident recently a staff member with Admin access altered a custom form with an additional data requirement, which then resulted in all existing copies of that form no longer displaying data until the new data requirement had been met.  This makes sense but it not immediately obvious, it would also be beneficial we had a way of saving custom forms so that experimentation can be done, although maybe its best that I ask changes are first made to the form in the preview environment to check compatibility.  Finally, If a field is deleted from within a custom form it seems all historical data collected by that field is lost, it would be good to have a way of reverting changes etc if needed to avoid data loss.