Folks, the fact 100kb OP_RETURN was “technically” already consensus does not change the fact v30 is opening us up to NEW attack vectors.
Embedding an AWFUL image in OPR (sole purpose arb data) every block every 10 minutes for a year..has NEVER been possible before.
The vast majority of nodes refused to relay and miners refused to mine, partly because of cues from the reference client setting default at 83.
This afforded us the extremely effective defense against awful “content” on chain: it’s a fringe lunatic minority abusing the system.
That premise is what allowed us to overcome accusations our chain is intended to spread and store CSAM.
If v30 is widely adopted, we lose that premise, and in the words of Gloria, that, umm, like, would be, uhh, very, VERY, like, not good.
"v30 won't change much - miners already bypass policy with direct submission anyway."
I tracked 3months OP_RETURN data to test that:
- Before Oct 10: Minimal large OP_RETURNs
- Oct 10: v30 is released
- Same day: F2Pool mines a 97KB OP_RETURN.
- After Oct 10: Clear increase.