Are you trying to say you are not a fan of the middle classes?
The good news is there are no middle class families in HOP, and none moving to the area so you'll be just fine.
With your skills in not only identifying but polling middle class families to find out so many of them are on coke, and not only that willing to sell family members, you should not waste these skills. One of the main political parties, who let's face it are all in need of fresh ideas, could surely use this information as part of future local election campaigns.
Whilst I imagine yours is in part a wind up, tongue in cheek post, glad you like the area. Criticising children's names is a bit below the belt though.
HOP does indeed have great restaurants - Babur and Querce in particular - though the latter if often full of middle class families with children named... I like it. SoDo by the station (The Old Bank) and Donde further down the high street have ok food.
Green spaces, yes plenty, Blythe Hill, One Tree Hill and of course not far Dulwich Park and Crystal Palace Park only 3 stops on the great Overground.
As an aside it's raining quite a lot!
And also we have a bugaboo - they are actually pretty good. Sydenham central, you should never worry about people criticising this sort of stuff (though I am sure the OP has done some of it in jest) - I certainly don't. I completely agree with you re litter by the way - the amount of people I see throwing stuff out of their car is amazing!