People in small communities often overimagine their own importance. That's not an insult, just a psychological truth. The DOJ doesn't care what people here write, and if you talked to people there, from political appointees down to staffers, most of them would fall somewhere between (a) pleasure that the democratic process is proceeding through random or organized discussion online and (b) snide dismissal of hackers they don't understand. They don't hire PR people to infiltrate discussion boards on general issues. (Of course, the FBI does hire people to infiltrate criminal communities.) Think of any cases of astroturfing that have come to light. It happens by hotels that want to post undeserved reviews on TripAdvisor, startups (and even charities, as Aaron once pointed out) that want to get attention, etc., etc. The DOJ and US Attys aren't in the astroturfing business.
Another thing that should give people some perspective: It's laughable for people to have suggested, as I think a dozen did, that the new limit for White House petitions (100,000 instead of 25,000) had anything remotely to do this this case. Most people in the administration haven't heard of it and never will. There's a lot going on in the world. ;)
I don't think you were just called a shill for either of those organizations, but rather a shill for one or more of the individuals involved.
Then they'll move on. They've got thousands of other cases, many of which have made other communities similarly angry. That we get 35,000 signatures for an online petition mostly speaks to the fact that we're online.
Believe it or not there are people who don't think like you. Some of them are lurkers, and a controversial subject like this one can draw lurkers out of hiding.
People can disagree with you and not be a paid shill.