The IWF is a whole other can of worms.
They are primarily funded by the U.K. Government. In other words, it could be considered an appendage of the Tory Party.
The IWF blocked Wikipedia for a bit a decade ago, because a very obscure page contained an old German band cover.
They also had a strange arrangement where they didn't quite operate legally, and relied on the police agreeing not to arrest them.
They also have a weird program where someone can submit their nudes to them for them to take down.
Like cops, they don't have a particular expertise in the human mind, and their opinions are not particularly useful.