BuddyPress.org

Here’s what I found:

add_action( 'bp_core_validate_user_signup', 'custom_validate_user_signup' );

function custom_validate_user_signup($result)
{
  unset($result['errors']->errors['user_name']);

  if(!empty($result['user_email']) && empty($result['errors']->errors['user_email']))
  {
    $result['user_name'] = md5($result['user_email']);
    $_POST['signup_username'] = $result['user_name'];
  }

  return $result;
}

You would also need to copy plugins/buddypress/bp-templates/bp-nouveau (or bp-legacy ) /buddypress/members/register.php tothemes/your-child-theme/buddypress/members/register.php and edit it to remove the section that asks for the username:

<label for="signup_username"><?php _e( 'Username', 'buddypress' ); ?> <?php _e( '(required)', 'buddypress' ); ?></label>
<?php do_action( 'bp_signup_username_errors' ); ?>
<input type="text" name="signup_username" id="signup_username" value="<?php bp_signup_username_value(); ?>" />

@janurmas

1. To hide admin bar to non-logged in user, you can use a plugin name Remove Dashboard Access.

2. There is no direct method to make BuddyPress profile page full-width. You can achieve this by editing Buddypress templates. To do this
Create a child theme
Put Buddypress folder in your child theme and edit the profile template. To do we should understand the templating system of Buddypress. Here is a tutorial for that.

3. You can use a plugin by Buddydev which lets you write posts from front end and add blog tab under user’s profile menu.

Hope this help you.

@sarojweb You can compose emails inside BuddyPress Emails options and for available tokens you can check

Email Tokens

@filozof86 Try Loco Translate Plugin, you can also check https://codex.buddypress.org/getting-started/customizing/customizing-labels-messages-and-urls/

OneSocial by BuddyBoss, is it possible to use BuddyPress 3 in a “legacy” mode?

I have the exact same issue using BuddyPress 2.9.4 (cannot update to 3 because of theme) and bbpress 2.5.14.

I have the exact same issue using BuddyPress 2.9.4 (cannot update to 3 because of theme issues) and bbpress 2.5.14 (latest).