It's nice that East Dulwichians take an interest in Peckham but 'Gussy' -if you "love Goose Green and all the new wood type equipment there" (except it's not spoiling the open space of Goose Green, is it?) please have a great time there and as you yourself say, leave " the lovely big grassy area" to the people who loved Warwick Gardens, Peckham, SE15 before they started turning it into an adventure playground for the white middle classes.