I totally agree that 10NL is Thunderdome. People are doing wacky stuff all the time. But I wouldn't totally discount the conventional wisdom about fish. All the villains in these hands have 'bad player' stats but only the last has truly loose-passive preflop stats, and I bet his AF was normally high. For the classic fish though, like 60/10/AF 1, the AF being 1 is important, they're not bluffing or raising light.