The sole purpose of RID was to be able to locate the pilot. To assume that RID is not now being actively used to locate drone pilots would be naive. You should now presume that every public event drawing large crowds of people where security is...
That completely depends upon where you live and where you fly. The OP wants the chance to be zero, not close to zero. Using an external RID device and relocating after launching makes transmission of his relocation impossible, which is exactly...
Man, that sucks. Sorry to hear your Mavic 4 Pro being confiscated. A lot of Air 3S buyers dealt with the same issues. Fortunately, a lot of the stories I read is that they either got a refund or DJI helped with the paperwork to get customs...
It is not certain that a resolution of this matter could take years. There could be a mass return-to-sender order that would enable DJI to refund those who never got their drone in weeks or months, rather than years