I would really like the HardRock part!
I want to cheat #1 on my own maps using FL-HD(-HR) specific .osbs I don't submit.You can already do that without mod flags, and it's a bannable offense if you're caught (though I don't think anything will be done about it until osz2, where it'll no longer be possible)
I would like to add a flag type.I think you're going about that wrong. What you want is to mark the flashes so they can be turned off independently of the storyboard. This was part of early talk on the subject of this thread (elsewhere in other threads from long ago)... the idea of layers for epilepsy and HR objects. Marking objects so they're unaffected by Storyboard disable is asking for trouble. To be truly safe, there needs to be a way to turn off storyboards... I have no faith in the system when it comes to dealing with flashes perfectly.
Flag determines whether storyboard element is disabled upon Storyboard disable
Useful: Allowing strobing/pulsing to be disabled, while keeping things like storyboarded backgrounds or collab names intact.