I've been wondering that myself. The descriptions seem to indicate that fully dragged to the left is liftkit, but my first assumption was that would be fully dragged to the right.
it's bad UX.
There's a little tiny arrow on the line's grab indicator showing which "side" you should look at. You can barely see it. Below there's the two labels floated to either side...
reactordev|20 days ago
tom_|20 days ago
(And I'm clearly not the only one that feels this aspect of the site would benefit from another pass...)