[asianowl]

actually now that i think about it a little more… you should replace the current_user_can() function with the is_admin() function instead.

[asianowl]

here’s some clues:

First you need to check the user’s role/capabilities and then remove the navigation menu for these users. For me, I used:

if (current_user_can('none_admin_role')){bp_core_remove_nav_item( 'notifications');}}
add_action( 'wp', 'bp_remove_nav_item' );

You then still need to remove it from the admin bar. My code:

function my_remove_admin_menu(){
	global $wp_admin_bar;

	if (current_user_can('none_admin_role'))
	{
		$wp_admin_bar->remove_menu('notifications');
	}
}
add_action('bp_setup_admin_bar', 'my_remove_admin_menu',301);

hopefully, this does the trick for you. I took me while to figure this out…goodluck.

[asianowl]

Found the solution! It was written up in the documentation! HERE

For my needs, I filtered based on roles like so:

function my_remove_activity_menu(){
	if (current_user_can('special_role'))
	{
		global $wp_admin_bar;

		$wp_admin_bar->remove_menu('my-account-activity');
	}
}
add_action('bp_setup_admin_bar', 'my_remove_activity_menu',301);

Good luck everyone.

[asianowl]

after a shower — it came to me that I should just hide the menu item in CSS with the following:
#wp-admin-bar-my-account-activity{display:none;}

But this hides it from everyone… does anyone else have a better idea?