Raven, before there was the board drawing evidence for MAME, people in the Donkey Kong community already were suspicious. There was evidence before all of this. There was the board swap, and the super high risky play that would mean certain death for any other player.
I've looked at much more material than I've alluded to in my posts, where much of it appears to be white noise resulting from the KoK movie and personal rivalries. The Twin Galaxies dispute thread about Billy Mitchell's 1,062,800 point Donkey Kong score is a prime example of this, where it quickly became a train wreck after the MAME evidence was posted. To keep things simple, I've opted to start with the present and work my way backwards in time.
I also have to strongly disagree that the MAME evidence is a single piece of evidence. At a bare minimum we are talking about 3 tapes, but more than that we are talking about MAME-like transitions presenting themselves in a high percentage of board transitions. I consider each and every transition with MAME-like behavior to be a further piece of evidence. Only one such transition is needed to show the potential for MAME, but multiple transitions are needed to demonstrate high probability.
In this case, I should have chosen my words more carefully. A more apt description would be a certain type (not piece) of evidence. No doubt, MAME is a complex subject, one which I mostly understand, but other than simply comparing results as they've been presented, I'm not fully qualified to call them conclusive proof.
In my opinion, the preponderance of the evidence, including that which I've discovered on my own, indicates a very high probability of guilt, where MAME alone might constitute a 70% probability of guilt in my eyes. At this point in time, having started out at 50% either way, I would now estimate the probability of guilt being 90% or higher. And that's excluding witness statements, except those from Billy Mitchell himself, largely because everybody seems to be pointing fingers at everybody else.
Evidence aside, one thing that stands out to me is that the classic arcade gaming community seems to be very fractured and hostile. Considering the fact that video game cheating appears to be rampant, I can't say I blame anyone for being suspicious and perhaps even angry. Every good story needs a villan, and guilty or innocent, Billy Mitchell seems to be fulfilling that role to perfection. It's just sad knowing that video games exist for people to enjoy, but instead they have become a vehicle for open conflict. Personally, I could care less about some number on a screen, and if someone beat my score to a pulp, I'd be the first to shake their hand, as long as they did it honestly.
Go on then. Give us some.
If there are a "myriad" of reasons it shouldn't take long to post half a dozen or so.
Sorry, I'm not biting. This isn't my first rodeo, and I've played that game before. I've said my peace, take it or leave it.