Comment by bastawhiz

It's bad advice because:

1. Telling someone to use one of these devices because their phone carrier might look up their location is silly in the first place, because meshcore doesn't even eliminate the possibility of being tracked geographically.

2. It protects your messages better than SMS but if you care about the privacy of your messages, it's infinitely worse advice than suggesting someone use Signal or another app that actually replaces SMS securely.