I wasn't sure of how to respond to this news the very first time i came across it. In regards to those making dust transfers, I think it's probably to add their wallet address to those that have sent Bitcoin to Satoshi. It might be for fun purposes. But in regards to the 26 Bitcoin, we can't be too sure if Satoshi made the transfer and why he did. No one even know if Satoshi is still with us.
Could it be that someone might be playing games with the minds of every Bitcoin holder?. Obviously, this act has nothing to do with the coming spot Bitcoin ETF. Let's just keep our fingers crossed and focused on the two coming events.