"Afterwards, they were offering discounted STEEM in return." No honest Devs would be doing that. I get people pretending to be me with broken engish trying to do discount trades all the time, and almost always with something with great potential and trending up. Why would I offer discounts? Why not just put for sale higher up on exchanges if Bitcoin is needed? This is one of the most common scams in crypto, discount OTC trades by imposters. The other is joining some groups where they charge Bitcoins, and then people find out the group is just collecting Bitcoin from suckers.