>Presumably this is to make it untenable for spammers to churn through multiple blocks of /24s at little to no cost.
This is exactly what it does. Hetzner Cloud will also, to the dismay of my ssh known hosts, keep assigning you the same IPv4 addresses until it becomes the LRU in their pool for a new customer so you can't do this.
This is exactly what it does. Hetzner Cloud will also, to the dismay of my ssh known hosts, keep assigning you the same IPv4 addresses until it becomes the LRU in their pool for a new customer so you can't do this.