@ "Pedantic" AC
You don't know what you're talking about. Maybe you should consider whether IWF is unbiased before you swallow their line (to say nothing of hook and sinker). They call it "child abuse images" and tell you it consists of babies being raped because they know that angle sells better.
In reality child abuse has nothing to do with it. Obviously some images like that exist, but the law doesn't stop there, and neither does the IWF. The real standard is much, much lower: Indecency. Nudity alone isn't enough (or strictly speaking, necessary) but combine it with a funny camera angle or anything that could be interpreted as a suggestive pose and that's all it takes. And of course the kid could be running around perfectly happy at a nudist resort or what have you and that would have no bearing on it.
Calling that child abuse is nonsense. Calling it porn isn't accurate either, but slightly closer to the truth, because in practice, the test is whether a pedophile, real or imagined, will find the picture erotic. There also exists a category of images which could accurately be called pornographic, but not abusive. See here:
But "indecent images of children" just doesn't have quite the same impact as "child abuse images", does it? But hey, thanks to the IWF you can see for yourself what one of these "child abuse images" looks like. Remember, even though they unblocked it, the IWF maintains that this picture is "potentially illegal", so look at your own risk.