I've read alot of the issues with flying through/in the Washington DC ADIZ.

Are most of these issues due to folks trying to fly VFR through this
airspace or are just as many people having these issues under an IFR flight
plan?

I was planning on flying up to BWI in a couple of weeks, it will be my first
flight into the ADIZ since 9/11. I'm currently reading everything I can
find on it and I plan to file IFR.

Are folks on IFR flight plans seeing the same delays that folks on VFR ADIZ
flight plans experiencing ?

Thanks.