  In this paper, we empirically analyze two examples of a Western (DE) versus
Middle-East (SA) Online Social Messaging App. By focusing on the system
interactions over time in comparison, we identify inherent differences in user
engagement. We take a deep dive and shed light onto differences in user
attention shifts and showcase their structural implications to the user
experience. Our main findings show that in comparison to the German
counterparts, the Saudi communities prefer creating content in longer
conversations, while voting more conservative.
