I can't answer for anyone else of course but, personally, one of the biggest reasons you seem "scummy" right now is that you don't seem to be putting much effort into helping us work out what's going on and finding the remaining Mafia. I don't know if you're a good player or a bad one ; this is my second game so I can't judge such things yet. But I haven't seen many solid thoughts or opinions from you, and that gets increasingly concerning due to the nature of the game. I think you're more unsure of yourself and how to proceed as opposed to outright ~clueless (not meant in a derogatory sense), but that can amount to the same thing, really.
The only way to improve is to try, and we're in about as perfect a set-up to learn how to play Mafia as we'll get online. So, my advice is to ask any questions you need to and then start working out what has happened so far and what it means. Hopefully that should give you enough to go on - especially as I understand you've played at least a couple of Mafia games previously, so can draw on that experience. You have a unique perspective to offer and I hope you'll choose to share it with us.