You don't know what you're talking about. They have long been abusive towards users, even if of course there are plenty of assy users too, the mame devs themselves are by far the main offenders, it's not the other way around.
No relationship allows people to get a free pass at being arsholes.
Of course you take the defense of fellow developers, and you seem to think their behaviour is normal and expected.
Just proves my point about the dominant twisted mentality in the world of developers.
And yes I can do something about it: tell it like it is, that they're wrong and the losers at the end of the journey, hurting their own project and reputation at their own hands, just a look at the status of the MAME 'galaxy' and how users avoid mainline MAME and devs overwhelmingly supports my point.
Anyway yes the thread has derailed too much already so let's stop.