Zero means unlimited, right?

"0" means that the profile won't get deleted, right? On this in admin under pruning:

Delete Membership Levels Expired For (Days):

Pruning is disabled by default - 0 indeed means that no accounts will be deleted.

If you are concerned about that getting changed by mistake, there is a forum topic on here where Deano discusses how to remove the code.

I need the person's profile to go back to standard instead of being deleted after their premium membership expires so it never gets deleted. Only premium members can upload videos and photos. If they do not renew, their videos and photos will be deleted after 90 days so there is a 90 day window to give them a chance to renew. How exactly would I set this up by just using the settings in the admin without coding?

Do I just set pruning to 90?

I am curious as to what happens to the videos and photos and profiles after the pruning takes place and after the membership expires. Or what if the pruning is set to zero? Would the profile automatically go back to standard? Would their uploads still be visible?

If you set profile pruning to "90" then every profile that doesn't log in for 90 days will be deleted. All they have posted and uploaded will be deleted also. Pruning isn't effected by membership types.

When a membership expires it should go back to "standard" but everything they posted/uploaded will still be visible.

Ah - the dooms day device.  Boonex finally changed the defaults after several members threw themselves off bridges in learning their own software had deleted their community.   

Ok I will leave it at zero. Thank you.

 lol