Then I guess we might agree. The only advantage I know of with bcrypt over multple SHA2 is that GPUs are very bad at it compared to most hashing functions, so

Then I guess we might agree. The only advantage I know of with bcrypt over multple SHA2 is that GPUs are very bad at it compared to most hashing functions, so the CPU cost (on my server) and the GPU cost (the crackers' cost) are not too different. (Anyone, please correct me if I'm wrong.) Off-topic: This exponential reply delay is really annoying.