“v30 won't change much - miners already bypass policy with direct submission anyway."

I tracked 3months OP_RETURN data to test that claim:

- 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.

Who's doing this?

F2Pool , Marathon, SpiderPool -> Combined 22-23% of the hashrate

23% of miners can turn 100% of nodes into large file (spam) storage devices.

v30 relay policy enabled this. Consensus rules will fix it.