Well, originally the daily collection posts were done in the bots themselves, same script, just with a timing trigger in it. To remove the overkill, and make those system more robust, I disabled that part in the botcode, and created a new script specifically for the weekly summary posts, and it is run well, weekly ;-) by a cronjob, taking much less resources on the server.
The bots themselves keep track of everything they do in a database, so that the summaryposter can read it from there.
!HOPE
!PIZZA
!INDEED
!ALIVE
!BBH
!STRIDE
!WEIRD