You don't find it funny to think of the FBI setting up surveillance on someone that seemed dangerous enough to be worth monitoring but it was all for naught because they were just watching a front door for over 14 hours a day? To me there's definitely an element of irony there both in terms of the troll's life being a little bit pathetic compared to their personas and in terms of the FBI seeming like this ultra serious organisation but being rendered ineffective by virtue of someone just intensely doing nothing for a long time.