If you are truly concerned about the welfare of cats, practise responsible feeding and advise such irresponsible feeders to stop doing so. All it takes is ONE cat-phobic person to complain.
However the property officers should be aware that "removal" (i.e. removed by pest controller to the AVA to be killed) of cats DOES NOT stop irresponsible feeding. It take MORE effort but definitely more effective by "catching" these irresponsible and issue warning or a fine for the recalcitrant feeder because they are littering. Property Officers can always engage the estate cleaners, who are likely to be aware of cat feeders, to catch the "right" culprit.