In What Scenario Would a Developer Rent Hashrate for a New Coin Launch?

A developer would rent hashrate before or immediately after a new proof-of-work coin launch to "bootstrap" the network's security. By renting a significant amount of hashrate, they can ensure the chain has enough security to deter early 51 percent attacks, which are most feasible when the network is brand new and has little organic hashrate.

This temporary measure provides a period of stability, allowing time for organic miners to join the network and establish decentralized security.