Interdasting… China huh.
I was thinking about this in the context that everyone on the list has advocated violence or inferred it. I also looked at the additional fact that each one of them have referred to conservatives as, racist, violent, deplorables, etc. etc.
So with this in mind if the person who mailed, what amounts to prank bombs, wanted to convey to these people that their rhetoric was off the charts and harmfully inflammatory in a lets see how you like it way, they might do it using this method.
It's a heartbreaker. Some of the people these packages we're sent to, have change their tune and issued statement's contrary to their previous inflammatory ones.
I can only hope that if this was just an effort to scare these people straight, it is recognized with this in mind should they be caught and the punishment fit's the prank.
I have another theory that involves the deep state and their efforts to derail Trump's presidency, and his efforts to pursue the FISA criminal charges once the report is declassified for unredacted release.