BuddyPress.org

Hi @tronix-ex,

Give this a try. Read more will only appear again if you use more than 500 000 characters…
Add to bp-custom.php

function bpfr_excerpt_length( $length ) {	

$length = 500000; // adjust the length to desired number of characters 

// Is the current page a user's activity stream page ?
	if( bp_is_user_activity() ) {
	  return $length;
	}
}
add_filter( 'bp_excerpt_length', 'bpfr_excerpt_length', 11, 1 );