I thought our content filter was pretty good, but it looks like I need to make it even better. The problem I'm trying to solve is to have the ability to exclude any post that uses the word 'Mastodon' or fragment 'Masto' and doesn't mention the fediverse or any of the 100+ other projects in the fediverse. But also doesn't reject posts simply because they reference URLs containing these terms.
This would instantly remove 99% of the brand-worshipping brain cancer in my stream.
It's a thorny little problem but I'll see what I can do. My only hesitation is that as soon as that project plays their implementation of FEP-5624 (in the next month or two), it basically exterminates us from "their" fediverse (even though we were here first), and it would all just be wasted effort.