And then, it is all about incentives. Users can send their coins to addresses like that, and then, miners could claim them, by grinding signatures.
I get why it's interesting for miners, but what's the incentive for the user to send his coins so miners can take them?
For the reader who doesn't know what this is about:
How to send 0.0000004 BTC?Sweeping them isn't difficult:
this transaction includes another (dust) input, sends 38 out of 40 sats as a miner fee, and is waiting for 0.21 sat/vbyte transactions to be mined.
I get the 40 sats, but why also send 6418 sats to bc1qt039dyk3u6x9x3t52nv0dw7evwg2ja7w05gx3v?
You don't even need 51% to cause havoc, you just need timing, from block 914604 to 914609 ViaBTC with 10% of the hashrate mined 5 blocks but we're fine since it's mega farms behind this that have no incentive to do so
ViaBTC couldn't predict at block 914604 that they'd mine 4 blocks in a row. So if they would have wanted to double spend coins, it would take them months or even years of trying before they can mine enough blocks in a row to replace a few other blocks. During those months or years, they'd miss out on block rewards which means the total cost of doing this would be very high.
I wonder if I should inscribe a block of my own, for as low as $500 per block, to be remembered for ages in the chain.... sounds tempting,
I wouldn't call storing data inside a large amount of other data "being remembered"
