Robots are disposable and every robot can have its own unique npub

In the other hand, if you use your primate npub, you loose the exact same privacy against your coordinators than using Telegram notifications.  For everyone else listening, they will only see that you received a gift wrapped event (NIP-59), with no extra meta data.

nostr:nevent1qqsz0llcnvkejrp8esw79z7rv8quhxddcn3663rrwltv80rch3lkm8spz4mhxue69uhkummnw3ezummcw3ezuer9wchsygy0h9zsqqa9nxa3kd8s87kmnvfh7mqwt2zshgs9je97u3ejen89fypsgqqqqqqsecn5yc 

 The other party knows who you are anyway because of the fiat side of the trade.