I agree with the above:
Is it, or is it not, limited to the US? (Global criterion) Text is unclear on this point.
More research on other countries' national/state forests and websites needed.
How does it relate to the othe cats such as state parks, public access etc. Guidelines for when to submit/not submit needed. (Redundant criterion)
Are grasslands included (yes according to the text) if so why are they not mentioned in the short description or title?
I personally don't like the idea that you can waymark any point of interest at all within the forest. This means you would be marking the individual POIs (which may go in cats themselves) rather than the forest itself. Do all POIs necessarily have signs?
Stricture against cellphone pictures repeated twice, but some comms devices have very sophisticated cameras. Maybe stipulate a minimum resolution?
This may make a good cat but as you say - more questions than answers at the moment.
I can't see the wood for the trees at the moment (ho ho ho)