You're right, of course; I overstated what I meant, which was in response to dennishoddy's comment calling for her incarceration for something that is obviously not a true threat; in that context, the SS visit suggested would likely have been more than just a friendly chat. My fault for being unclear.The USSS "bothers" everyone who makes what could be construed a threat, and no one who's merely being offensive. Likewise they "bother" anyone who violates a presidential TFR. They do this because they don't know who is inappropriately expressing their feelings and who is truly ramping up their courage to commit an attack. That's why they're called "Investigatiors".
It would only be Kafkaesque if they took it farther than a friendly chat and open source dive when the person is determined to not be an actual threat.