Re: Delete users with no posts
OK, so you can’t use the WordPress user management functions. With MySQL 4.1.* you can use subqueries. Are you comfortable making a database backup, and then are you comfortable with a tool like phpMyAdmin? I ask because I will explain how I would do it to take care of the problem one time. I wouldn’t necessarily call it the best way or the only way, just the way I would do it with things I would check beforehand.
Might as well make a backup of the bbPress database now.