[jimkleiber]

It seems that the internet is being flooded with accounts that use real people's stolen identities and this is yet another example.

Which, if any, laws did the creators of these accounts break by posting these comments to the FCC under other people's identities?

[AGSchneiderman]

It may violate a number of laws, including laws against impersonation or misuse of identity and falsification or forgery. Depending on facts we uncover, it could also be a form of a deceptive business practice. Some of that conduct is criminal under NY law, and some of it also constitutes a civil violation.