You know this already, but I sent them to your email as in your HN profile.
I have no idea how important blackboard is - probably less so for the business world, but plenty of students use/encounter them.
If it's easy to work out a algorithm that cleans up the blackboard but harder to work out detecting the blackboard, your idea of two email addresses (doodle/wb@, and blackboard/bb@) would probably be a good solution.
I have no idea how important blackboard is - probably less so for the business world, but plenty of students use/encounter them.
If it's easy to work out a algorithm that cleans up the blackboard but harder to work out detecting the blackboard, your idea of two email addresses (doodle/wb@, and blackboard/bb@) would probably be a good solution.