I know that shipping weed and marijuana concetrates is considered pretty "safe", but what is the risk associated domestic orders between legal states? Is there ANY risk at all? I imagine the only way it would be detected is at an airport or in a USPS/Fedex building and the employee wouldn't care since it's legal there. Is there any risk that I am not seeing? It seems like ordering domestically between legal states is fullproof, or at least receiving to a legal state.
Actually you're misinformed on a few things.
Of the seizures that occur, weed actually accounts for a significant percentage due to the strong odor and requirements to facilitate shipping. One small slipup in shipping opsec can bring down and entire operation. Concentrates and edibles are considered somewhat safer but all said and accounted marijuana related products are frequent targets of profiling and busts.
There is actually a significantly higher chance of a package being profiled from a legal state, because due to regulations and not wanting to bring legal scrutiny upon the state, there tends to be more awareness and more money spent on detection of legal weed being shipped out of state. It's actually a huge thing the postal inspection service has been working on, and trust me, those guys don't give a damn if it's "just weed." If your pack gets profiled being shipped from a legal state, even if it's to another legal state, you can bet your ass they're gonna do everything they can to slap you with federal charges involving trafficking through the mail.
I just honestly have to ask, if you're receiving in a legal state, why even bother using dnm?