Just thinking thru the 'overhearing the hams' scenario- if hams are on the HF bands then they are most likely using SSB for voice.
I expect that most 'prepper grade' SW receivers don't receive SSB.(haven't done the survey - just a hunch)
Might be worth considering switching to AM mode for nets for just that reason. Won't help the band crowding but would certainly make it easier for the non-ham public to listen.
(Dang! I've been licensed 42 years now! )