Thanks,
Pagal

i tried this plugin, and it removes the extra fields during the registration, which is great, but the problem is, there is no way you can add more info to your profile, since the fields are disabled by this plugin.

The user profile fields are simply items in a PHP array. You can remove an item from the array to remove the profile field, or add a new item to the array to add a new profile field.

<?php

/*
Plugin Name: My Profile Fields
Description: My profile fields for my lovely forums
Version 1.0
*/

function my_profile_fields( $fields ) {
    /* This removes the Occupation profile field: */
    unset( $fields['occ'] );
    /* This adds a new optional field called Favourite Band: */
    $fields['faveband'] = array(0,'Favourite Band');
    /* This adds a new *required* field called State: */
    $fields['state'] = array(1,'State');
    /* You must return the array at the end of the function: */
    return $fields;
}

add_filter( 'get_profile_info_keys',  'my_profile_fields' );

?>

Save the code above as a .php file and upload it to your my-plugins directory (you may need to create this directory in the root of your forums installation) and then activate it from the Plugins menu in the bbPress admin area.

Edit: Code updated as a complete example of a plugin.

An Extra Profile Fields plugin would be pretty neat. When I was testing Vanilla 1.8, that was one of the things I liked about it. At the bottom of the profile page is an empty 'name' field and a matching 'content' field. You add what you want, then click a link to add another, etc. It means users can customise the extra information they enter, and I think it feels more personal to them as they get to name the content field. Feeling that it's more personal is bound to make people stick around I think.

@johnbillion: I found the filter at line 2201 of functions.php in 0.9.0.5, but have no idea how to use it. If you have a few minutes spare sometime, could you perhaps give us some hints, and a brief snatch of code?