How does Bolt12 help if they don't already use Bolt12? It's new companion software all the same.
Instead of an offer code that uses some dodgy onion network, an offer that uses nostr keys and relays as transport.
The user doesn't have to have a nostr profile, just their wallet or node software would use it directly.
This is a more sane use of nostr than fake twitter anyway.
Conversely, you could give out paper tips that contain your nodes public key, a secret, and relay... and the person receiving the tip gets it from you directly.
No servers needed, the relays already exist and are compatible with SSL so it works on the web too.