Give users profile pages and not just popups or at least let me refer to older post they've made and commented on to see if I want to follow them or not. Or just give me a link to view their feed easily to I can see what they are posting, commenting on and sharing. Make it more clear what the "Interested in" section does. Also make it easier to find and set interest. Fix the password request and user sign up page(sometimes like when I tried to recover my password today it referred to a 404 page). Also sometimes when you send messages it simply goes to a 403 page and instead of telling you what part of the forum is incorrectly filled out. Time stamp things to let me know when it was posted. Sometimes commenting on things that are days old isn't worth it. They can also at times just give you a helpful time line for things over the course of a day. Make links or make an option to have shared links open in a new tab in the user control panel.