The bot was setup before we were even aware of your account and challenge structure. 😉
The code is at https://gitlab.com/photog.social/mastodon_bot
Sorry, but I'm a bit uneasy with the turn of events. Certainly didn't understant well your intent, sorry.
I see you started posting reproducing the #WPC hashtag.
Not that we own anything, but this is going to be very confusing for everyone.
Two themes for a single hashtag can't lead to a good comprehension of the current theme.
Can't you use something like #DPSWeeklyPhotoChallenge?
Also, did you publish the code for the bot? Would be very interested to see it.