This is the repo for a bot framework:
https://github.com/SockDrawer/SockBot
Requires username/password authentication, which is incompatible with the @system account. I recommend creating a separate account given moderator for this purpose.
However,
NOTA BENE
SockBot is designed for educational purposes, and is not intended to be used on typical production forums. It is also designed as an experiment of what can be automated within Discourse, and is generally targeted directly at what.thedailywtf.com.
This bot should not be used without the forum owners consent, and any use of this bot should be immediately discontinued at the request of the forum owners or moderators. SockBot is not intended for any ill purposes, and the designers of SockBot can not be held liable for abuses of the technology, or any software derived from it.