Designates content to be shown to a member after a certain period has passed. The countdown is started from the day of user creation in WordPress.
[memb_show_after days="4"] The content to be viewed after 4 days. [else_memb_show_after] This content shows before the date of availability [/memb_show_after]
If you choose to use [memb_show_after] without the else clause, it will simply show that content until the day of expiry and then not show anything when it becomes unavailable.