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Thats not a bad idea actually. To take it a step further, if one has the faq module installed, a new module installation could inject new common FAQ's into's the main FAQ tables for inclusion to the main output.
Just brainstorming, so don't mind me. The only other option I have right now is to create new FAQ's for each subsequent module installed that requires more user interaction. It makes good practice for me, because if the module developers don't inform the users, and I don't inform the users, then I have a whole mess on my hands.
I don't know whas worse, planning ahead for new features on my site, or developing and implementing them. Either way, it's a tedious task that has to be done one way or the other.