[RyanHighman]

For all ranks: a grace period of 7 days to unresign at their current rank with a direct appeal to admins (no app needed)

For tmod+: a grace period of 2 months to unresign at a rank 1 step down from previously held rank (application must be made on the forums)

Anything beyond that should be treated as a fresh start and the application process should be started at trusted/tmod.

In all cases, the final say and deliberation should be held by the admin team. Nothing should be automatic and they should keep the right to accept/deny these things based on behaviour during the resignation/as a staff member.

Edit: I also like the idea of admins being allowed to set custom waiting periods for staff that come back at a lower rank to apply for promotion (i.e. a mod coming back as a tmod and being allowed to apply for mod again after a month).