BuddyPress Remove Members Slug
If you want to get rid of BuddyPress' annoying /Members/ slug, simply use this plugin. For example: www.example.com/members/john/ >> www.example.com/john/
Consider using the plugin "Restrict Usernames" to avoid problems with your pages.
If you are familiar with functions.php I suggest you to use the following line instead of using the plugin:
add_filter( 'bp_core_enable_root_profiles', '__return_true' );
If you are not familiar with functions.php, simply go to your WordPress Dashboard >> Plugins >> Add New >> Upload and then upload, install and activate the .zip file.