The slippery slope of filters & legal concerns:

1/ By increasing the size of OP_RETURN, we enable criminals to insert illegal data. User nodes become illegal in some jurisdictions!

2/ By routing all transactions, we enable criminals to send money. Apply this blacklist from OFAC or else your node is an illegal money transmitter.

3/ By adding this upgrade to Bitcoin, you enable criminals to have more economic freedom. Anyone running the activation client is a criminal.

4/ Register your node, we need to know your full name and address to be able to enforce existing laws and regulations. If you use Tor or a VPN, we will ask for logs from your ISP and the compliant VPN companies.

5/ Why are you even running a node? It’s redundant, there are too many copies of the blockchain already. There’s this cool SPV feature in the whitepaper that Mike Hearn built. Here, use our wallet instead. Why do you need a node, got something to hide?