maybe your hobbiest server doesn’t need a off-site backup but an instance of a massive social media network expected to be used by many users absolutely will. and sorry, but your nas simply will not cut it as far as throughput goes. it’s just not designed for that much activity.

its still not a small amount of storage. and no, there’s still not really sd cards or flash drives bigger than 1tb, but obviously even if there were and they were super cheap, that would still never suffice as server storage. plus, if you’re hosting a node you’d want at least 4 or 5 times that storage to use a raid 5 or 6 array + at least one onsite backup, and one off-site backup.

now we’re talking thousands of dollars in equipment just for storage, not the actual server itself, internet connection, etc.

in theory yeah it’s not a bad idea but it’s also 60 million lines of a cobol