I like various parts of this proposal, though most of the feedback I’m seeing is that people do generally want proactive threads as long as they’re relevant. The problem is finding a way to continue proactively posting threads in people’s feeds while somehow eliminating the following issues with the current implementation:

• Too many low-interest series competing for real estate with high-interest series on the community feed
• Low-interest series not attracting any attention

Your approach solves the first problem at the expense of severely reducing the discoverability of lower interest series. It seems possible to tweak this proposal in such a way that it solves the original problem without that downside:

1. Restrict per-episode threads to a secondary community (!episode_discussion@ani.social works, but anywhere else would work just as well)
2. On a daily basis, post a “Today’s Episode Ratings” thread to the main !anime@lemmy.ml community which will simultaneously act as a directory of what’s airing today & a ranked board showing each individual thread’s current score/ratio/comments
3. If an episode thread does well one week, then the next episode of that show will have earned the right to get hosted directly on the main !anime@lemmy.ml community feed instead of being hidden away

I think this achieves a good balance between pruning automated posts and maintaining discoverability. The appeal of using a “Ranking” thread as a link directory like this is that it creates a fertile area for low-spoiler crossover discussions/discovery without sapping interest in visiting each of the high-spoiler individual episode discussion posts linked therein. Furthermore, dangling out the ability to “upgrade” a show like this will serve as a general incentive for engagement across all interest levels while still solving the original problem of fairly determining what should/shouldn’t be promoted on the main community feed.