Well, trying not to cut myself shaving with Occam's razor, here's a collation a few of the theories floating from the Slashdot thread mixed with my own:
-TaoPhoenix
Interesting theories, and all of them plausible. At one point, there were many websites that hosted MAME ROMs that were shut down due to people who had hand-me-down copyrights raising a stink. And in the case of
Mame.dk (sigh, never got a bad ROM from them...), it was their hosting company Efront that was slapped. Ahh, memories...
* Edvard loads Galaxian... again...