I wish paradox would comment on these community 'fixes'.... like ah, yeah we should look into that... or no don't do that, that's bad... or great idea, nice catch, etc. etc...
I would also like to know if we are 'helping' them track down things...
Of course we are helping Paradox track down things. This is why they make the code so open and easy to modify. Part of the fun I've had with HoI 1 and 2 has been watching the community build an ever better game.
As far as Paradox commenting on these community fixes, I imagine they are focusing their time on putting the ones that work into the next patch. You can be confident these improvements are noted by the masters. Note also this sticky by Johan:
http://forum.paradoxplaza.com/forum/showthread.php?t=419935