create function to hide bbPress topic content in BuddyPress activity stream (WordPress)

We need a simple php Wordpress function to hide just the content of the bbPress topics/replies in the activity streams within BuddyPress - in the main activity wall and the activity walls of members. A snippet should be possible, which can be posted in our [login to view URL] file within WordPress. Here is the topic in the BuddyPress site which explains all the details: [login to view URL] We just need someone is familiar with WordPress, bbPress, BuddyPress and WordPress functions.