The moving lines just means they are popular threads ( I think ) It only seems to happen to threads with more than 1 page of replies. The red is if it contains unread posts
@steven_eire Think you may have nailed it, the moving lines does only seenm to move with threads over 1 page, which makes no sense, another one i have noticed is a thread that the user has posted in has a little red star in the top right
Comments
"It's a great feeling to be dealing with material which is better than yourself, that you know you can never live up to."
-- Orson Welles