The system doesn’t account for human nature, pilots will rarely call fatigued on the duty and the reports they do send afterwards achieve nothing.
Exaxtly the same happens in non-FRMS environments too.
I asked because your your reply seemed to indicate that "just because it's an FRMS, it's bad". But now I see that's not necessarily what you said. I do agree though with a lot that you, and RatedDe, have said in your latest replies.
Having worked under a much more basic GA-targeted FRMS (prior to this "new" 48), I much preferred it in many ways to the "old" 48 and a lot of the "new" annexes. Maybe my experience with the management of one has been pretty good and that's why I don't think "FRMS is bad"?