I’m pretty new to the fediverse, and I find the idea amazing. But one thing concerns me though. How will server owners be able to afford to run servers with massive amounts of data coming through them? Theoretically speaking, if a Reddit migration were to happen how would server upkeep costs look like?
That really depends on how many users and communities you have. It can be in single digits for small servers and hundreds (or even thousands) for the bigger ones. And everything in between for medium-size servers.