Stallman defended legalization of pedophilia by name (and in the context of an overt political effort to eliminate age of consent entirely) and only recanted that support after the controversy over Minsky erupted in 2019 (which, given the somewhat related subject matter, also brought heightened, though not the first, attention to that advocacy.)
Now you have read something you had not read before. I am glad to have shown you something you didn't know.
The point Stallman made, in the most deliberately urticant and confrontational possible way, is:
Are you willing to incarcerate people for drawings? However disturbing the subject?
> 26 October 2014 (Prison for cartoon) A man in the UK has been sentenced for prison for having a cartoon depicting a fictional child in some sort of sexual situation.
The advocates of this kind of censorship started by saying they were trying to protect real children from being abused in order to take their photos. Making such photos should be a crime, and is a crime, but that is no reason to prohibit possessing copies of the photos.
However, they have already gone far beyond that. No child was harmed in drawing the cartoon.
To criminalize possession of copies of anything published — no matter what it is — is oppressive, and leads to many other forms of tyranny.
It's also absolutely not libel, and it's rather silly to throw such terms around.