On multiple occasions I've listened to instance admins speak about high S3 costs. The sheer amount of data absolutely balloons the more activity your server sees, I get it.
What I don't get is whether there's some unknown fedi ethical reason everybody insists on setting up an S3 cache (followed immediately by complaining about it).
Y'all want to know what the rest of the web does? Hosts their own uploaded media, and links out to the rest...
