My Entry:

My worst investment was Minerone which was a mining service where you bought stakes in the output. They seemed to have a good team and lots of information and pictures as to what they were doing. There was a huge interest in the ICO. They were even posting pictures and updates regularly about where they were investing their money and the progress. They asked the community often when there were big decisions to make so that the community stayed active. They also had an active Telegram support channel where you could ask questions and get advice.

However, it was a scam and the information and communication dried up. Investors became frantic and then realised that the worst was true.