That honestly sounds so fun! Who better to build your defences than your attackers ahaha

Tying into your concern, keeping IPs fresh and high quality will definitely be a balancing act as we get bigger. It'd be one today too if we were to try to offer super granular location controls because there's only so many proxies in X state, let alone X city. Currently, we get to aggregate & QA from multiple proxy providers, so our total pool is 300M+ IPs in the US and so far we've had a 99.95% rate of getting a fresh IP address in a session. So so far so good :)

As for that last point, I guess we'll see what the future has in store for us :P