With the 10.14 release that is set to go live tomorrow, we've added a number of security measures to help prevent cheating when submitting MAME high scores, including disabling the ability to change dip switches in order to have more lives, etc. Once the new release goes live, versions 10.12 and 10.13 will no longer be able to submit high scores, in order to make sure that no one uses an old version in order to cheat.
We have removed a number of high score records that were obviously either errors or involved cheating, but we probably have not caught them all. The question is whether we want to reset the high score system or not, now that it is more robust. We need your vote.