There's also this more recent post: https://electriccoin.co/blog/turnstile-enforcement-against-counterfeiting/ https://electriccoin.co/blog/turnstile-enforcemen

There's also this more recent post: https://electriccoin.co/blog/turnstile-enforcement-against-counterfeiting/ https://electriccoin.co/blog/turnstile-enforcement-against-c... It sounds like that plan has been codified in recent clients, so they should automatically reject transactions that would cause a pool's balance to go negative.