I wish I could write a review, but my review would contain negative feedback. The "terms of use" indicate that by posting content, I "grant GreatNonprofits a nonexclusive, royalty-free, perpetual, irrevocable, and fully sublicensable right to use, reproduce, modify, adapt, publish, translate, create derivative works from, distribute, and display such Content throughout the world in any media". The terms of use also state that I "assume all risks associated with use of your Content, including any reliance on its accuracy..."
If I have zero guarantee that my content will be posted as I submit it and know that my content may be modified by third parties throughout the world, I can't write a review, and I'm not sure how other reviews can be relied upon.