I would say that this comment is "real" - in the sense that it was actually wordsmithed for the position it supports, but that it is likely that the purported person's name and address are fake/misattributed to the comment.
This wordsmithed position likely came from some partisan political action web site gathering automated signatories; you go to it, fill out your info, and it posts to the FCC input form/api or whatever.
Similar ones exist as well for the opposite view ("for net-neutrality rules").
At that point, it's a matter of generating the information and pasting and sending (the actual text is usually pre-filled on the form, sometimes with allowances to allow a real user to edit the form).
For instance, I looked up my name on the AG's site - it found several hits. Most of them were "against net neutrality" - essentially with the text you posted - but the addresses didn't match my address.
But a couple were posted "for the current net neutrality rules" urging the FCC not to change anything; even so, I didn't post them, and the addresses didn't match.
Curiously, one of those two comments had a small sentence tacked onto the end, reading "Don't fuck this up!" - which is something I would never put into a public comment to a govt agency or request. So even though I agreed with the position, it still appalled me to see that vulgarity applied to the comment.
All comments though were fake - I never sent any of them in to the FCC.