Various question about cleaning up an imported vbulletin

[david (David Taylor)]

@Canapin

What I’d like to do is delete users that posted only titleless topics and remove the user’s topics too.
Could such a thing be done fairly easily with rails commands?

It might take a little experimentation, but yes. Something like this might work as a starting point:

User.find_each do |user|
  untitled_topic_count = user.topics.where(title: "").count
  titled_topic_count = user.topics.where.not(title: "").count
  if untitled_topic_count > 0 && titled_topic_count == 0
    # delete the topics and/or the user
  end
end