I am surprised that removing all the wtf folders worked for you. I removed it on one of my machines but I will definitely try removing them from all machines when I get home from work.
While I can play using the stop following thing when my main stops it really isn't fun. No disconnects but really bad lag, warping of the characters etc. I hope they do something about it soon.
I checked the blizz forums a few days ago where a couple of posts adressed that topic but there seemed to be no answer from blizz.
Anyways,
have fun,
Bunny