In purely theoretical terms I agree, but I don't think that's practical given that you be open to someone more or less experienced, and slightly change the role based on who's available. Experience-based salary ranges are everywhere, even in highly-regulated roles like the NHS in the UK. The key here is the low figure, which will let you know whether they might try to lowball you (presuming there's enforcement if a role is advertised at £X to £Y and they then offer you £X - N).