The comment you’re replying to is poking fun at a gag project; but I agree with you as well.

The ETH chain was about 500 gigs over the summer when I synced a full node, but it was growing fast. The amount of data stored is monotonically increasing for every full node in the network. You also need fast storage, you can’t use dirt cheap spinning platters. Maybe it won’t grow faster than storage cheapens, but I’m not sure I’d make that bet.