Oh dear. From Reddit, straight out of the South Sea Bubble playbook.
Bitconnect was a website that was heavily advertised throughout social media platforms such as: Facebook, Youtube, and Twitter. This website allowed people to put their money in a "Trading Robot", which supposedly was able to produce returns better than the average daytrader.
...
Then when Bitconnect had around ~$3B USD worth of capital, their website suddenly shut down ... Bitconnect tokens effectively had 0 value. ... Many people lost everything they put on the website, causing mass selling of assets.
Worth noting that the "trading robot" never existed, and it was essentially a ponzi scheme.