Ah - I can see why they’d prefer an automod (they’d not have to worry about configuring or changing the server software in that case).

Unfortunately, as far I can tell, none of the existing automods out there support deleting posts by a rate limit. It’s not impossible to add this functionality, but it’d take a bit of work and time from a dev.

For example, I think for lemmymodbot one can modify the User Processor at https://github.com/noenfugler/LemmyModBot/blob/master/lemmymodbot/processors/user_processor.py to accomplish this.

Under line 8, add this line to create a user/seen hash

user_post_seen_hash = {}

and replace the entire execute function with something like this,

if content.actor_id in self.user_post_seen_hash:
if int(datetime.now().timestamp * 1000) - int(user_post_seen_hash[content.actor_id].timestamp * 1000) <= 300 * 1000:
handle.remove_thing(“Posting too frequently, take a break”)
self.user_post_seen_hash[content.actor_id] = datetime.now()

(Oh, and at the top of the file, also add above the first line,

from datetime import datetime, timedelta

)

But for lemmy.world (even if just looking at /m/politics) it would likely OOM from the in-memory hash due to the volume of users, so it’d need to be extended leverage the database for the lookup.

Something similar could be implemented on top of threativore, I think around this line might be the easiest place to implement the check of the username/timestamp, https://github.com/db0/threativore/blob/main/threativore/threativore.py#L285

Edit: Forgot to add, all the above code changes are completely untested by me, use at your own risk, etc.