Istock has had this "bug" for a couple of months now.
Their web site doesn't calculate your approval rating. Thus you can't know for sure what percentage of your files have been accepted, and you can't know how close you are to becoming an exclusive photographer. And so, applications for exclusivity are completely shut down while this bug lives on.

The site says, "You have a 0% approval rating. You're almost there. Keep trying."

This brings up two issues.

1) I don't believe it's a months-old math "bug", I think they are rethinking exclusivity in some way. (my opinion, of course)

2) The irritating way you get treated by the moderators.
Here's an example: http://www.istockphoto.com/forum_messages.php?threadid=339985&page=1
The interaction goes like this.
You mention the bug on their Help forum.
Someone says you can calculate your own acceptance rate. Divide the rejects by the uploads. (if it's so easy why can't iStock do it anymore?)
Another person says you should contact support.
The moderator gets on and tells you "Do not report this bug again" and locks the thread.

If you contact support, they tell you "Do not report this bug again"
If you contact the moderator he tells you "Do not report this bug again"
That's it.
You can't discuss it with other members, you can't ask about it, you get this "stock", stuck reply that was clearly sent down from Headquarters.
They pretend that you are reporting the bug, then shut you down.

Clearly the "bug" has been already been reported, but people want to talk about it with each other [and dispel all these rumors] without being disrupted.

There is something going on here, more than crowd control. this is highly irregular and annoying.  Maybe there is something to be discussed here. Is it really an unfix-able "bug"?