I have concerns that filtering out the spam just pushes people to pay the large miners directly to put their spam on the blockchain. This is bad for miner decentralization since the large miners are basically guaranteed all that revenue. The smaller miners have no chance of earning any rewards for that spam. And yes I don’t want spam on the blockchain, but it doesn’t seem like you can stop it so why are we hurting smaller miners?

Replies (3)

Miner centralization is currently being driven by template sharing due to pool financing. The issue you bring up would only come into play if #knots dominated the network, and it would only be a drop in the bucket compared to the template sharing issue. Even if we were in the situation you describe, I think the impact of forwarding spam would be marginal. The miners would get extra revenue only when spammers are willing to pay.
If I'm able to help small miners a tiny bit by stuffing your mailbox with junk mail, I still don't want to do it.