I don’t think there is an automod but it should still be possible to make a dedicated bot account for these things… Though it would be a bit more difficult than programming automod… In the end it is up to the mods to decide how to implement something like this
Although, it sounds like a fun challenge to make a software to easily create automations for lemmy… Maybe if I get the time to I might mess around with the idea
Perhaps a good way to handle this might be to have a single week’s updates mega-post at the end of each week with top level comments starting separate threads for each released chapter in that week?
There is a slight tradeoff though, it minimizes spam but also discussion on chapter releases in the beginning of the week would have to wait till the weekend