GC, VoA, BC, and LL are NOT illegal sites. The average person is very ignorant about almost everything to do with the subject of MAAs, and amongst their ignorance is the assumption that simply forming a community to provide each other mutual support and to discuss all relevant issues related to us and our situation in modern society is "illegal." Many people are so ignorant that they believe simply being a pedophile or hebephile is illegal regardless of our actions, and this is probably due to reading nonsense about "convicted pedophiles" in the press (simply having these feelings is NOT a crime). Also, they tend to read all sorts of exaggerated B.S. about "pedophile rings," and this causes them to think that all Internet forums dedicated to this topic and frequented by MAAs can only be involved in diabolical activities, like "giving each other advice on how to rape children and get under the radar of parents and the law to do so." They don't bother to read our posts, our mission statements, or any of the myriad topics we discuss on these boards to learn about us as people. I think the very false assumption that these forums are dedicated to discussing or conducting illegal activities is what may have prompted the administration on this other board to consider all forums dedicated to this topic as "illegal sites."
As for your argument with those people, one cannot expect enlightened knowledge of this subject amongst the teleiophile majority at this point in time, nor for people to be aware of, or even care about, the objective scientific studies conducted by Bruce Rind, Paul Okami, and others that make it clear that underage youths do not suffer trauma from relationships with older people if those relationships were based on mutual consent and respect. Modern society has a lot invested in the continuation of youth oppression and the modern Victorian-derived cultural paradigm of the "child," and most contemporary people's thoughts on this subject are led by knee-jerk emotional reactions, not a logical concern for what the science says on the subject.