When you mouse over a thread title in the thread list, the Assistant makes a net request to load that thread.
(This can be seen by opening the dev tools pane to the network tab.)
When slowly mousing over the entire thread list - the Assistant loads each of those threads in rapid fire, only to then throw that data away.
This generates unnecessary server load and is probably a bug.
Expected: Don't load anything until I click, or maybe if I linger over a thread for a while. (It looks like there already is some sort of linger time programmed in, it's just a very brief one.)
