There is no way for the CR to monitor when kids get on. It is up to parents to know and understand at what age they should allow their kids to be on the internet. I certainly did NOT allow my elementary aged children on the computer at that time, and they did not use the internet when it came out until they were past high school. I don’t believe that my grandchildren will be on the internet any time in the near future and we are NOT chareidim. If their parents are giving them access to the internet then it is their responsibility.
There is no way of knowing what age or gender any poster is until they come out and tell us.