While I surely do NOT want to adopt Barbara Hatch Rosenberg's own irrational, vicious, and possibly actionable MO, I DO think it's reasonable to question if the results she got were the results she sought to get. IOW the results you list above.
Her efforts were certainly NOT casual, they were intense and the intensity lasted over a very long period and with NOTHING reasonable to back them up. Yet she persevered. She wanted something. It may have been to distract from and/or protect the actual perp(s). LOL, how do you like it when it's turned on you, Babsie?
She made it clear what she wanted from the very beginning. She believed that the Bush Administration was behind the attacks, and that the Bush Administration did it to shoot down the Biological and Toxic Weapons Convention (BTWC). She basically stated that at the BTWC in November of 2001.
She and a bunch of others who felt the same way decided that Dr. Hatfill was the "most likely" person to have done what the Bush Administration wanted. So, she began her campaign to get Dr. Hatfill publicly investigated.
The FBI checked out Dr. Hatfill as soon as his name came up, but they found no reason to suspect him. But to the conspiracy theorists, that just meant that the FBI was helping the Bush Administration in a cover-up.
The New York Times joined in, and the campaign went on for SIX MONTHS before Van Harp at the FBI caved in and began the public investigation of Dr. Hatfill.