Most are quite hesitant to pay anything anymore anyway since old dev didn't quite deliver... and BTCs were burned.
You're quite right! All that these scammer-devs (not only the old ERC dev) have done is to kill the altcoin-market and damage the credibility of the honest people who are really trying to work.
If we get a hold of that Twitter account, maybe we'll get some more conversation. At least I'll be here.
I'm not promising anything but if one day I find a way or someone to help retrieve that twitter account I'll let you know!
Have a good day my friend! : )