Can't prune inactive users

[dougdirac]

Interesting. I had about 4000 members to purge. It let me do the operation, and I though it was done. But to check, I did the search again, and I still had about 3000 members left to purge. I had to perform the operation a few more times until they were all gone. It never gave me an error message, but still only deleted about 1000 at a time.