It's a really good idea to use the "Lists" feature on Mastodon for stuff like this:
https://fedi.tips/how-to-use-the-lists-feature-on-mastodon/
I follow a bunch of news that post a ton of content that I don't want cluttering up my usual home timeline. So, I've added them to a "News" list and excluded that list from my home timeline. This way, I can either view the list whenever I wanna scroll through the news or even add an entire separate column on the advanced web interface just showing that list with news that's separated from home.
I only discovered the Lists feature recently. It's a gamer-changer.
My opinion is that Beehaw's philosophy seems to be fundamentally incompatible with the concept of federation.
You guys want a very specific community that's heavily moderated to ensure everything within it conforms with the "safe space" environment you wish to preserve. While that's your prerogative, the reality is that the vast majority of instances, and users on those instances, aren't going to come anywhere close to your standards, nor do they have any desire to. That means you're going to be continually fighting fires in terms of the moderation you'll have to do in order to preserve your community's ethos.
You guys want a walled garden community. Federation is the complete antithesis to this concept. You'd be better served by forum software, or a completely isolated Lemmy instance. The Fediverse as a whole may be better served by you guys doing this as well, since any major community hosted on Beehaw presently that others in the fediverse enjoy could disappear for everyone on your next whim of which instances you wish to defederate or when you leave entirely.
You'd be doing both yourselves and the wider fediverse a favor by going off and doing your own thing as you seem to want to do, in my opinion. Frankly I'm surprised you've not already done this a lot sooner.