Not sure who True Blue is directing that rather flippant and condescending remark to, personally I am not advocating any breaking of rules by anyone. The original rules permitted aircraft movements up to midnight for the purposes of extensions - not for the purpose of scheduling movements beyond closing time. As I alluded to, this has now been brought back to 11pm, I don't know whether this is an amendment to planning regulations or whether local airport management are attempting to be good neighbours and inadvertently damaging their business in the process.
I have no doubt all airlines are aware of the restrictions at any given airport, as I also alluded their own operational decisions are strange at times. Having said that, no-one on this forum knows what is also happening behind the scenes leading to these decisions. Either way, something will have to change and sooner rather than later.