If (20) is true, John is easily pleased. In which case, it is easy (for someone) to please John; and here, ‘it’ is pleonastic. But if (21) is true, John is eager that he please someone or other. This asymmetry is effaced by representations like ‘Easy-to-please(John)’ and ‘Eager-to-please(John)’. The contrast is made manifest, however, with (20S) and (21S); where ‘e’ indicates an unpronounced argument position.