Personally I think the communication aspect of the site has gone slightly. Before the update to IPS 4 I communicated more with friends, I sent more messages, I interacted on forums more and, most importantly, I could see their status updates. Without the notifications for things such as people statuses I don't know what friends are up too or how they are doing. I'm not trying to say the update is awful, because it does have a lot of good aspects, however I think some things do need to be changed. For example the notification feed or the file sorting.