Bitcoin is worth over 100k USD per coin. The hashrate is over 900 exahash. We are closing in on block height 1 million and one can run a node with 1 tb hard drive. I think we can safely put the storage cost argument to bed for the time being. 😂
Discussion
I think the "knots" side uses our conscious deprioritization of the issue, into sounding like apathy and perhaps even a support for spam.
I don't like to play into that, the spam is a problem, having OP_RETURN is a better solution to it than limiting it.