WP Frontend Submit is a plugin that allows site users to create and submit posts to a WordPress site using a simple front end interface. The default configuration means that only logged in members can post and that their posts are held for moderation.
Buddy Registration Widget is an unusual plugin in that it is very mission specific, it will add a widget that displays the BuddyPress registration page, it disables the BuddyPress member profile cover image site wide and it won’t allow new members to access the site until they have set uploaded a profile avatar image. There are no settings to change, once uploaded these options are set and that’s it. So if your site has these specific requirements then this plugin is for you, but if you want registration in a sidebar widget but also want profile cover images then this plugin is not an option!
Within BuddyPress, the Xprofile is the Extended Profile, information from which is what you can see when you view the Members>>Username>>Profile page. It is Xprofile fields that are completed when a member signs up for example. The registration page gathers data for the Xprofile “Base” Field Group. Other Field Groups can be added by Admin which are not set up on registration but will also be displayed on the members profile.