Overview
Mentions a new member in up to 10 channels, then deletes the ping automatically, a way to trigger channel “new member” notifications without leaving a permanent mention in chat history. Use it to point new members at the channels that matter, like the rules or the general chat: they get the notification and the red dot, and the chat does not keep a pile of old mentions.
In Discord: Mia joins and Petto mentions her in #general; the mention is deleted after 5 seconds.
Commands
!poj add (a delay that is not one)
!poj add (a delay that is not one)

In Discord: delete_after has to be a length of time such as 5s, 10s or 1m.
!poj remove
!poj remove

In Discord: a channel removed, and one that was not in the list.
!poj enable
!poj enable

In Discord: ping on join turned off and on again.
!poj clear
!poj clear

In Discord: every channel removed at once.
!pojconfig
!pojconfig

In Discord: !pojconfig, the settings of ping on join and the commands to change them.
delete_after defaults to 5 seconds. clear removes every configured channel at once. Bots that join are not pinged. !poj also works as !j. !pojconfig shows what is set now for ping on join and every command to change it.

In Discord: #general added with a 5 second delete, then the list of channels.

Dashboard → Security → Join Gate → Ping on join: the switch and each channel with its delay.