When I called my reps (repeatedly) their staffers/phone-answerers would say absolutely nothing about SOPA to me. One (I forget which) said "he supports net neutrality," but beyond that it was "he's issued no statement, I don't know his stance, what was the name of the bill again?" I'm disgusted with all my legislators on this... each office (besides Brown, I think) agreed to follow up with me via email or phone when they find out more, none have. I live in western MA.
I am so tired of this sort of shit. Communicating your stance on an issue to your constituents is part of your job, legislators. If I call and you can't tell me your stance on a major issue like this, you are not doing your job, just like a dishwasher who throws plates in the trash. Raah.
Hopefully (I'm not super hopeful), what we're seeing is that the supporters of it don't want to have to back down, but everyone else just wants to leave the issue as far away as possible so they don't have to talk about it.
Of course, he's probably going to be fired if they figure out who he is, just like any phone-support person would be fired for saying things so far outside what the officially stated company position is. But on the other hand, he probably doesn't care too much - he'll get a few thousand karma on Reddit, "I got fired from Senator Schumer's Office for calling him out on supporting censorship, AMA", and he only took this job anyways because his rich uncle pulled too many strings to set it up for him to say no (even though he'd never asked in the first place, that was his mom). Shit, he doesn't care about politics anyways, he's going to be a musician, his parents just won't accept that because he hasn't gotten a record deal yet...
One thing they certainly do is record all the responses. He's got a tally of how many people called, from where, and what they thought about things even if he doesn't put much effort into responding.
When things are really controversial, they get absolutely flooded. I'm a little disappointed you got through at all. I know I had some friends this summer working in the offices of people on the super committee and they couldn't answer calls fast enough or even clear voice mails fast enough to keep the answering machine open. This tells me that a whole lot less people are calling than are saying they are calling from the internet.