While I do have a lot of sympathy for the original poster, I still feel that the drawbacks of a CPZ, particularly given the way that Lewisham tend to implement and administer them, far outweigh the benefits.
Before I came to HOP I lived in a couple of places with CPZ's. Space for car parking was probably more limited, partly because bays were clearly marked and people were prevented from parking dangerously close to corners and bends. If anything, the officiousness of the parking attendants was worse than we currently have here.
The logistics of having visitors with a car during the week, either family, friends or tradespeople, were painful, though on balance, I think that having a CPZ would definitely benefit people closer to the station.
Having been here for a dozen years, I am not sure that commuter parking has got significantly worse in that time, but not having lived in the worst-affected streets, I am not best-qualified to comment. I do wonder, for what it's worth, how much parking on the streets off HOP is commuter parking, and how far people actually travel to park there. In a way, I would be a lot more sympathetic about people coming a long way by car than those who save themselves a 10-minute walk home - for that I still think that the Perry Vale car park at FH should be opened up and made usable/reasonable.