Earlier quoted context omitted.
I agree that losing references is a big problem. Thanks to GDPR you can request an export. https://www.couchsurfing.com/preferences/privacy If that fails, you can also contact me - my account is Taiwan-registered and still has full access. I can save your references, photos, and friends list, but not your private messages.
Ah, I saw that link on the BW forum post and now have my data :) It would be great if the data was signed, and it could be verified with a public key. That way you could have validated references for import into BW. Alas, I see nothing of the sort in the JSON.
As mentioned in https://news.ycombinator.com/item?id=23219760 references is coming.
The verification issue though for import is a big one, we couldn't just trust a JSON file the user has uploaded to have real references, there would be nothing stopping them writing their own glowing references.