[12sp]

I’m using BuddyPress Version 1.5.6 on WordPress 3.4.1.

[frank tredici]

Yes.

Take a copy of ../wp-content/plugins/buddypress/bp-themes/bp-default/activity/post-form.php

Put it in your themes directory using the same sub-dir structure /activity/post-form.php

Then simply comment out line 25 in the script

Quite sure that will do it for you.

Good luck.

[ginreviews]

I’m using the Genesis frame work with the church theme. What do I exactly have to do to disable “what’s new” in profile?

[danbpfr]

Read again @frank13 ‘s answer.
You have to make a copy of post-form.php file and put it into your church theme
From within this copy in this copy you comment the line 25, like this
`// printf( __( “What’s new, %s?”, ‘buddypress’ ), bp_get_user_firstname() );`

Done !
I you ask again i will answering in french