Re: Registration with email address only
I have bought from my freelance a plugin that remove login choice on signup. It generate an username “user43fr53hzet56….” for each new member.
After activation, in user account, each user can change this username only ONE TIME on what he want, to have better user slug. User page can be catch with http://example.com/auto_username, AND http://example.com/custom_username by auto insert on .htaccess
If user missed something and want change again his username, you have just to delete the user line in the plugin table.
I think this plugin with “email login” plugin should make you happy.
As I am not php coder, I can’t assume any support for this. But if someone want update this plugin…