It is becoming a corollary to Godwins Law: When losing an argument, compare your opponent to Hitler; if that fails, accuse him of being a sock puppet and/or government agent. Maybe you should point out that a Mossad agent would be feeding him his entrails and mocking his inability to digest them.

The thing is, I TOTALLY would not put it past rogue government agents or even an official agency op to stalk you, me or anyone IF IT WAS WORTH THEIR TIME.

The internet is a mixed blessing for them; it is far easier to passively monitor traffic, set filters, red flags, etc., but there is also FAR more traffic to monitor. Ninety percent is nobodys screwing around online, an annoying distraction from an intelligence agents ACTUAL concerns. Even if a conspiracy theorist got everything right no one would feel threatened absent significant proof, so "silencing" him would just spotlight his raving. Unless you actually DO have a Roswell alien in your freezer or a signed confession from the gunman on the Grassy Knoll, if a secret agent "silences" you it will be because he is tired of LISTENING to, rather than afraid of, your yapping.