How easy is it to detect people using Meshtastic, Meshcore, etc? And wouldn't it be easy for someone to flood the network or just jam the frequencies in a city?
Jamming against terrestrial radio is pretty meh, you need a ton of power and because of the inverse square law the bubble you can zone out is surprisingly small. There are also a lot of tricks to defeat it pretty soundly depending on the environment and type of transmission you're doing.