Check out the event lot page in the ACP (under advanced). The user's deletion event should have been logged, and the IP address should have been saved.
... as long as your NodeBB is new enough, that is 🙂
Nothing to check for the user to upload avatar.
What version do you use?
Please, try to use 0.7+ instead.
git clone -b v0.7.x https://github.com/NodeBB/NodeBB.git nodebb
@APXEOLOG How to fixed it for 0.6.1? I'll update 0.7.x in next week.
I'm don't know, i've only worked with 0.7 version. Are you sure there is such option in 0.6? If so, maybe this is template error