I am shadowed on main and have been playing on alt with no issues BO7/WZ and the MW4 beta, so the ones getting HWIDed while on DMA is simply because you´ve been raging or did in the past, there is no misterious conspiracy about it, My alt is not new, it is aged as well, also see a lot of people getting new TPM chip and still being unable to play.
New accounts are done from day one so no need to even spend time creating one and 1PC cheats are even worse, don´t even bother.
My SB has been lifted like twice then i can play regular lobbies MP/WZ just to get shadowed again the very next day, even in casuals not killing real players, only bots, so i think that account is done, at least for what remains of BO7´s life cycle, never used this acc on the beta since i firmly believe it would trigger the HWID message for sure.