Small cute feature: "Community Hearts Beats".
If someone Likes any post/comment then everybody else could/should see a very small & quick 1 sec heart animation (zoomIn/zoomOut heart effect or heart beat effect or any other but cool one).

Example: top left logo could have heart beat for 1 second. This could encourage other users to post or like something too and to think about life and endless possibilities like fFamily Products hahaha ;)