Even though you own the original disk it's still illegal to download an ADF - you could have made an ADF of your own disk while it was still working, but downloading an ADF of someone else's isn't allowed.
That is F-ing bull****. Every Amiga computer came with Workbench disks. There are no keyfiles or serials, so if you own the original disk(s) you can download ADFs all day long, you own the license so to speak. It is like going to the store and buying Windows XP and then cutting up your CD, then downloading a XP ISO off the net and using your serial key with it!
Especially now since there is no Commodore to get a replacement. I can see back in 1992 getting a copy would not be the "correct" course of action, it would be to contact Commodore-Amiga, Inc., and get a copy for like $7.
As far as I am concerned if anyone comes to me with a Amiga and asks me for a System Disk, I will gladly give them a copy that corresponds to the original ROM and OS that came with the machine when it was released. ie WB 1.3 for A500/2000, WB 2.x for A600/3000, WB 3.0 Amiga 4000/1200, etc.
If anyone does not like it tough. :banana: