That's pretty linkbaity. Dropping a "nuclear bomb" would be something like, "I have a recording from the Bin 38 meeting that proves you were colluding. The FTC will start examining it at 9am sharp tomorrow morning." Sure, it's unusual for someone to so strongly come out and call people out, especially people that he may want to invest alongside someday, but "nuclear bomb" is a serious stretch.
Right. He's used up his "nuclear bomb" title for the year. What happens when something truly scandalous happens? I suppose he could go up to hydrogen bomb..
What I'm saying here is that Michael Arrington has plenty of room left for hyperbole, even now.