@tchambers potentially, you'd still need at least one of the radios to be connected to traditional internet. And you immediately run into a recentralization problem, where you have to trust the person running the Mastodon bridge.
The ideal situation (and I'm not sure if C2S is at a point yet where this would work), is you being able to sign an activity, send that activity over meshtastic and then any number of people could run delivery radios that take your signed activity and give it to your server. Which would be pretty cool