Originally Posted by Sergorn 
But that's the thing: Ultima IV was never freeware. There was speciific permission given the members of the UDIC to redistribute the game and that's it. Ultima IV was never released in public domain, and EA always retained the rights to it.
-Sergorn
So they need to protect their IP from the horrible fans.
It's just odd they went after this flash version. It's not making any money and even though it changes a few things the majority of it is exactly like the original.
Even with that said he doesn't own the IP so it's their right to take it down. It's just odd they went after that guy when there are so many fan made mods and fan made games in the Ultima universe.