I doubt there is any online comment system that could prevent people’s names from being misused really. It’s not like we have a national ID card with private crypto keys issued to every citizen or something.
How are you supposed to verify someone’s identity online without going through a laborious and expensive process (e.g. an in person interview, or requiring upload of a state or military ID number that is then used to send a postcard to the address on file asking for verification) that would then be criticized as discouraging public comment?