Basically piefed.social scrubs all posts and comments from those exact communities (that fall under those keywords specifically) after 6 months to save on space. Rimu (correctly or incorrectly) regards memeposting as mostly frivolous and not worth saving long-term.

Having looked at the words and code specifically in reference here, I think it’s a copy and paste job from another local function (the local piefed.social retention rules)

Also, the context here is automatic federation of communities - right? It’s not a keyword filter in the sense that you’re referring to.

It can be and is disabled by other instances.

This post will be deleted in a few hours when this account self-deletes and the lemmy.world admins purge it.

You are not needed to do this. Lemmy is absolutely fine without news-article spam across multiple communities from day 1 accounts. Your activity is actually harming the fediverse by forcing us to come up with innovative ways to throttle new users.

You do not need to flood the feed full of posts.

Moreover, since you self-delete - almost all of your content gets purged. How is this helping?