SFLC is far from a well supported organization in the GPL world. You say that the busybox settlements are necessary because most authors lack the means or the time to pursue violations, but in fact anyone who wished SFLC to act on their behalf is free to let them - and yet no one does.
It is telling that not a single mainline kernel copyright holder will allow them to, including your employer and many of your coworkers. As noted elsewhere in the comments, Rob Landley regrets assigning them rights for busybox, and no other authors have been represented in the suits.
The SFC will grant a new license, but on one condition - not only must you provide the source code to Busybox, you must provide the source code to all other works on the device that require source distribution.
Quoth wikipedia:
On 7 December 2007, a case was brought against Verizon Communications over its distribution of firmware for Actiontec routers; this case was settled March 17, 2008 on condition of license compliance, appointment of an officer to oversee future compliance with free software licenses, and payment of an undisclosed sum.
On about Aug 03, 2010, BusyBox won triple damages of $90,000 and lawyers' costs and fees of $47,865, and possession of "presumably a lot of high-def TVs" as infringing equipment in the lawsuit Software Freedom Conservancy v. Best Buy, etal., the GPL infringement case noted in the paragraph above.
The suit against High-Gain Antennas was settled on March 6, 2008 with the company agreeing to comply with GPL and paying an undisclosed sum to the plaintiffs.
On October 30, 2007, an SFLC press release announced that the lawsuit had been settled with Monsoon agreeing to comply with the GPL and pay a sum of money to the plaintiffs.
etc.