So, I definitely want to see Mastodon remain healthy and continue forward, but I wouldn't mind if someone could explain this to me a little more...

https://atomicpoet.org/objects/edff069b-bc28-4b18-ac37-a3173723c31e

... Aren't the posting and operational costs associated with the Fediverse borne by all the individual instances? What costs does the overarching org have? (Not being snarky, I'm sure they exist, I just wish I understood more)

Ahhh... I was only thinking of the hosting costs which are going up with increasing user load, but there are of course also the overall development costs of the project. For some reason I thought it was an open source platform but in fact it is a project with paid developers and such.
@deviantollam Mastodon is an open source platform, open source platforms can have paid developers and development costs. "Open source" doesn't mean free-as-in-price or even volunteer developed, it just means that the source code is made available to all users, and users have the right to spin up their own instance and make whatever changes they want.