Is this accurate? Theres some sort of side-storage mechanism in Bitcoin that you can essentially pay for, but its little trafficked. But its used for NFTs. And

Is this accurate? Theres some sort of side-storage mechanism in Bitcoin that you can essentially pay for, but its little trafficked. But its used for NFTs. And for whatever reason this entity bought a ton of "NFT UPCs", which has the side effect of driving up transaction costs because they're spammy transcitions on limited bandwidth.