I hate to say it, but looks like this "dev" have indeed disappeared and stole people's money. Actually his behavior was very suspicious from the beginning - he was ready to change
anything, just to get more money (decreasing the price/marketcap 10 times, which means he never even gave a thought about it!!
). Several pretty lame sentences also suggest it is just a teen with some tech knowledge. Well, the tricky teen has made some money for school here, so his project almost worked out...
Did not invest here, as those lame replies and immature behavior put me off...