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Looking at their site, GFF does good work on privacy but is almost absent on free expression issues.
Privacy is still an important area to work in, and it's good that they do that, but it's also worth considering their limitations. Don't expect too much from them in that area.
In one case, they put emphasis on pushing for improvements in appeals processes and the like. They then go "hoorah!" as if this is a big victory.
It isn't as if this is without value but a bigger issue are deliberate policy decisions. Facebook removing nudity is a deliberate policy decision. It's not as simple as someone making a mistake.