When a player who has a mojang account clicks play offline, their username is no longer used, this can cause bugs with mods etc.
It is also annoying if the login server are down and you record/stream your gameplay. as your username (in offline mode, email) can show when running commands.
MC-10163
When in offline mode the client uses your email for your username.
Resolved
Duplicate
0
Jordan B
(Unassigned)
Unconfirmed
privacy
Minecraft 1.4.7
Retrieved
Duplicate of MC-2555, please use the search function to see if your bug has already been submitted. Currently over 51% of tickets are being closed as duplicate.