See my answer to the guy below. He's arguing for a law such that child molesters can more easily get prosecuted, instead of prosecuting teenagers who have pictures of their girlfriends/boyfriends.
The other is where he's doubting that pedophilia is harmful to children. So yeah, that's pretty well "in support of pedophilia." That one isn't subjective, it's the words he typed, and try as I might I can't find an interpretation where he's not saying pedophilia is fine.
If I said "I am skeptical that infants smoking weed is harmful to them", does it mean that I smoke weed, or that I smoke weed around infants? Or that I actively support it? Or do I (perhaps wrongfully) state that I am skeptical about claims around the topic?
Personally I think pedophilia is just about the most awful thing in the universe. I wouldn't engage in in depth speculation about how it affects children, because I think it's a horrible thing to think about, but the fact that RMS engages in those conversations doesn't make him a pedophile. And it definitely doesn't make him an "active supporter" of it.