Carousel is one of the ones that got the scene in trouble.
I remember Empire even hosting ROMs for their early machines on their site. In fact it wouldn't surprise me if Empire even used MFME to develop their early games on, I know of 2 other manu's who were.
We had such an opportunity to built a good relationship with a manufacturer, and blew it entirely. There are some resources (ROMs + Artwork) that we may never get unless we can get 'insider' help. It's so important not to piss the manufacturers off. We are already so lucky that they turn a blind eye to us for the most part. The Nintendo guys would love the relative freedom we have, Nintendo hate emulation with a vengeance and have gone to ludicrous efforts to prevent it.
We need to try and build good relationships with all the manufacturers as it benefits us both.