DFC I suspect you are misunderstanding previous posts on this topic.
Any unit to which a flightplan is relevant will be notified in the form of a Flight progress Strip.
The important word here now is relevant.
I think , and i don't like making personal comments , that you choose to misunderstand the responses here as you have decided that ATC are not interested in you.
A correctly filed flight plan ( note the correctly), will have the appropriate addresses on it and those addressees will be informed . There is nothing complex about it, there is no collusion with units dumping flight plans and everyone who should be informed according to the flight plan will be informed.
We may receive FPS on aircraft which have no relevance to us and at that point we will Bin the FPS however the flight plan still remains in the system and should it become necessary a FPS can be obtained within moments.
Now I suggest DFC you accept what all the ATC professionals are saying to you and that all Correctly filed Flight Plans will reach the appropriate destination.