What, in short, is the difference between help from Nokia Care and from maemo.org?
N900 owner is entitled to the former one and can hope for the latter one. If anyone here wants to help, they are absolutely welcomed. But no-one can be made to help, it is not obligatory.
Providing support of various kind is a natural thing in community and if it gets bigger, it usually means that the community grows. Which is good. But this is not the primary function of community, nor its obligation.
If I'm going to get mad about not getting support, I shouldn't get mad at maemo.org. I should get mad at Nokia Care.

In short: you're a hero if you help, but no-one should be required to be one.