DC, I understand your frustration and anger, especially after all the work you have put into it, it is sad for everyone that your stats will not be available. Most people have aliases anyway so the data does not identify a person by name. Come to think of it, the stats data is meaningless to anyone outside of WCG, Why does this have to be made private? What possible harm can come from someone knowing how many units I've done yesterday!

Something to think about, Why not keep your stats going for people who opt in, yes it is not showing everyones work and it will mainly show the active members. Not perfect or complete, certainly a small subset of the whole but it is better than nothing. That is all I can think off at the moment.

The solution is simple, I think. Have an "opt in" system, and those that don't opt in are denied write access to the forums and are allocated an anonymous non-attributable user ID which appears in the stats and nowhere else. That would then allow accurate stats and meaningful reporting for those that care.

If accounts are deleted or someone changes team their contribution stays with the team.

Nothing like planning ahead...

"To get the token, you must first sign our Data Processing Agreement to ensure that you're willing to comply with certain requirements about how the API data must be processed. We are still finalizing the text of this Agreement and will email you as soon as it's ready."

There is Data (that should be private) and then there is data which is useless and without context.
I would not like my email address to be made public, but my WCG stats anyone can have, whatever good it may do them.
I've never looked at any other team forum but I bet there are a lot of stat systems and all will be broken with the changes. WCG should have been a bit quicker with the ball on this one. It will not stop me or anyone who cares about the work being done from contributing though. It will just take a bit of time and DC a bit more work for things to be more or less be ok again.