I really appreciate Luke's general perspective and willingness to roll his own client, but this is a bad take. One man's blockchain spam is another man's treasured bible verses. Who's to decide what's worthy of mining? There's no moralizing on this - let's allow the fee market to decide. Ultimately, you can't keep people from putting dumb stuff on the blockchain. I'd rather they at least be obvious about it and keep it in op_returns, otherwise we're back to bloating the utxo set with forever unspendable transactions, increasing the burden on all nodes.
They changed the fee market with the segwit discount.
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