greencactus on Nostr: I know it may be a bit of am obvious question, bit I want to play devils advocate ...

I know it may be a bit of am obvious question, bit I want to play devils advocate here and ask why not WhatsApp? It is also end-to-end encrypted. I know that they collect far more metadata than Signal, but in case I'm a "normal" citizen, what exactly may be the consequences of that?