One concern I have with moving to Lemmy is the server upkeep costs. I realize that there is a donation option available to aid in server upkeep,
But what happens if this funding falls short?
I am not entirely confident in my assumptions, but I can say with relative certainty that despite being federated, the server’s bill has to be paid by someone. Lemmy is not a P2P service lol.
Wouldn’t all the content go down if those other instances did?
The content would go down, but you’d still have your account. I think it would be fairly rare that a big instance goes down. The ecosystem should become large enough that the risk is mitigated.