Not registered (still not) and I don't plan to do this unless I can convince myself to buy me an A1200
I am definitely not going to register for mere emulator use, because I only need it for testing; for if I really can't get a game to work from ADF, I use WHDload for grabbing screenshots for HOL, for instance.
For emulator users, WHDload has IMO lost a bit of attractivity because of CAPS. Whilst people were mainly using WHDload to play from originals, they can now use CAPS versions for this purpose, fire up the IPF and start playing.
For REAL Amigans, WHDload is still top-notch and very important.
This should explain why I'm still refusing to register.