I have been missing my audience rank for about 3 days now. I started to get very suspicious of this so I started asking around. It looks like Stumble Upon has taken a page out of the book of digg and started removing factors that allow you to gauge your rank and profile power within stumble upon.
We currently still have the top stumblers page at least but I feel that may be sure to follow the audience rank and be removed. The power behind each profile seems to have stayed which is no big suprise.
I hope they bring it back because I got it up to around 6500 and I was really happy to see this number keep growing with all of the quality stumbling I have been doing. Its a nice way to be inspired to keep stumbling as petty as that sounds.
See my interview over at Web Pro News regarding the audience rank removal.
Pronet Advertising picked up the story as well. Thanks CAM!