When an idea is submitted with custom fields data, that data comes into the idea detail page above the idea description. Since custom fields data is most often supplementary to the idea being submitted, it would make more sense that this info would be displayed BELOW the idea description. See image: https://screencast.com/t/BotkT34oMvT
When a custom field is no longer relevant, there should be a way to archive that field so the responses are still visible in the ideas or profiles of the community, but the field is no longer included in new submission forms.
That way, you won't lose responses by deleting a field if it is no longer relevant.
As a moderator, I would like to record the date that an idea has been matured and accepted by our Innovation Management Team to initiate a project for implementation.
Also suggest to have a "date picker" feature available for entering the date.
I think it would be great to include the integration of Google Maps for physical locations. Google Maps has a rich database of physical addresses that Users can reference from in Submission forms.