wallet of satoshi or alby work just fine for collateral post, among others.they have pretty good docs showing which wallets work or dont work. 

 Would you agree that burger feel super KYC-free since they both have ahold of an email, maybe I’m doing it wrong? 

 burger? not sure what you mean 

 Arg. Typo. Neither* 

 ya id be comftorable using an alias email like simplelogin and use either for the bond