Even the link you provided suggests Backpage was working with the National Center for Missing and Exploited Children. The context that it mentions this suggest

Even the link you provided suggests Backpage was working with the National Center for Missing and Exploited Children. The context that it mentions this suggests that Backpage "may have manipulated" the reports, but doesn't describe exactly what that means. Manipulated could mean something as innocuous as erring on the side of protecting consenting adults, only reporting more obvious cases of exploited children. We don't know though, because in spite of the fact that this negative language "manipulation" was used no details are given. So even in the report written by the people who are trying to put Backpage owners in prison, written in the most negative light possible, I was able to find redeeming information in just a few seconds of skimming.