Thanks. That is a concern. But I don’t see another way to achieve the use case of a nostr user wanting to onboard a new friend at an in person social event. 

AFAIKT, this would require:
- A QR code for the friend to scan as the ONLY step to follow from the user. (This step HAS to be quick and able to be completed at a later time.)
- Since friend prolly does not have a native client already installed, QR code MUST launch a web client. 
- this will EITHER be a dedicated onboarding client or it will be a social client with an onboarding flow. 
- assuming the former, a dedicated onboarding web client MUST provide links to other (native or web based) social clients.

Do you see another way?