# Gavin Andresen
# 2012-09-08 15:22:28
# https://bitcointalk.org/index.php?topic=106162.msg1170703#msg1170703

@s{quotedtext}
@s{quotedtext}
That would violate his users' privacy; maybe I don't want you (or the rest of the world) to know that I have a Gox account. @p{par}

You don't need accounts or registration, you just need a two-step process: @p{par}

1) User tells you their refund address @p{brk}
2) You give the user a unique deposit address, and link the refund and deposit addresses in your database. @p{par}

To avoid creating a gazillion deposit addresses or bothering the user to give you a refund address every time, you might want to store the "user already got a deposit address" flag in a session cookie.  But if the user will remember the deposit address then even that isn't necessary. @p{par}