[@snark Participant 15 years, 2 months ago]

I’m seeing the same thing, and this is a BIG PROBLEM. And I’m running single-user WP 2.9.1 with BP 1.2-rc latest trunk (Sunday night).

Deleting the user doesn’t delete their Forum topics and replies like it should — the title and content of each post is left intact — it just says “Deleted User” in place of the user name.