Thank you very much for taking the time to respond and explain a bit more to connect the dots for me. I didn't notice the built-in @AMRRON group name nestled in the rest of the special purpose groups. I definitely don't appreciate their inclusion, since it is tacit approval of the group, as you alluded to.

Yeah, the FCC document definitely made the potential to leave relaying enabled iffy. I really wish I was a better coder, or I'd fork the code, remove the @AMRRON group and pop up a prompt of whether to allow a relayed message, or only allow to/from trusted parties.