BuddyPress.org

@verteus This functionality is already included in buddypress: in _inc -> global.js change the number in the following 2 lines:
1- if ( jq(this).children(‘ul’).children(‘li’).length < 5 )
2- if ( i < comment_lis.length – 5 )

In this way the latest 5 comments will be shown and a link “show all comments” will appear above comments. Of course this will happen when number of comments is above 5 (change the number to what you want).