I saw that a buddy just joined and wanted to give him a Thumbs Up. I switch over to the User List on mobile and try to find him but it is near impossible when
A) you are riding B) you have to scroll to find him and C) when you do the list updates and you click on the wrong user.
Then when you go back you have to scroll again.
You should either be able to lock the scrolling or the auto update should not happen when you are using the list.