As we move into the election season for one of the most important elections in our lives, there will indeed be sock puppets moving in who are not true Freepers and not here with good intentions. Raising this curious question has now brought attention to this real possibility that is coming. It happens every election on every political board like this. Raising the question has also raised awareness to watch for this. There will soon be enemies within the ranks, it is inevitable.
We can all see when an individual signed up. You signed up on Sep 14, 2016 just before the election as you have mentioned the possibility of others doing. If an individuals are disruptors here, that usually becomes obvious and they do not stay very long. It they try it multiple times the mods check their IPs and find them as you have done on your platforms in the past, VPNs notwithstanding.