Since most members of my team do not sign on every day, I only use Stream when one wins something or becomes EA. I rely more on the weekly team mails.
My upline reminds everyone to advertise more, check their To-Do list every day, posts motivational quotes, and gives advice.
The most useful Stream post, so far, was from Leon, who told everyone to stop using Hotmail for team Mail. I switched to Gmail, and am glad I did, as I wouldn't be getting the weekly news otherwise.