Why are you intentionally trying to get blacklisted?
The system is terrible. Other's have followed in blindly on that flag not knowing/understanding the full stupidity of the system (or just for the sake of testing - see yahoo's post) at the time. I wasn't sure of how bad the implications of it either, i.e. it's
much more worse than I originally thought. Now that that has sorted (there is no support on the flag), it's all good. I'm fine with a blacklist if mr. theymos wants to. All flags created after that are fully valid; maybe only not the flag on BSV.
Update: Rewrite.