The problem is that, in many cases, busybox is the only program you can actually "see" and hence enforce the license on. Once that disappears, everything behind it becomes technically invisible; so you could use this "piratebox" plus other infringing software, and be safe.

It's sad, really. I can see a future where a terminal program or command is embedded in the linux kernel and cannot be removed, only to force companies to stay honest.