... I really kinda wish that using the same visiting stone didn't count AT ALL, rather than counting for two fewer points. It takes far more time to walk (or even TP) to another stone than it does to use the same stone twice, and it's not worth the two extra points.
For my part I've been walking anyway, because I like walking and I'm secretly hoping there's an achievement for using a whole lot of visiting stones in the same day. But the people who are bouncing in and out of the same stone 200 times are racking up the points much faster than anyone can walk anywhere, making me wonder why there's bonus points for movement at all.