A 1-time fixed cost will not deter spam, it only encourages more spamming to lower the averaged per-spam cost. Email spamming requires some system set up, that's a 1-time fixed cost above $10/year but it does not stop spam.
It’s one time fixed cost per stream of messages, with some out of band mechanism to throttle posting per-stream. I’m not sure I agree with the original articles choice of throttling mechanism (binding to the universal Bitcoin clock), but the concept still makes sense: in order to scale up production of spam, you still need to buy additional domains, otherwise you’re limited to one post every n-minutes, and domain registration slow enough for block lists to keep up.
Comments
A 1-time fixed cost will not deter spam, it only encourages more spamming to lower the averaged per-spam cost. Email spamming requires some system set up, that's a 1-time fixed cost above $10/year but it does not stop spam.
It’s one time fixed cost per stream of messages, with some out of band mechanism to throttle posting per-stream. I’m not sure I agree with the original articles choice of throttling mechanism (binding to the universal Bitcoin clock), but the concept still makes sense: in order to scale up production of spam, you still need to buy additional domains, otherwise you’re limited to one post every n-minutes, and domain registration slow enough for block lists to keep up.