These are phishing scammers who want to steal your myetherwallet private keys. I unfortunately lost over one btc worth of eth and tokens a few weeks ago and they are running rampant now in all the slack rooms as well. Many now will move from slack to rocket which has better security options. Unfortunately slack doesn't want to help imprOve it's security and many are falling prey to their really slack security loopholes. You can also hold TAAS in Liqui and Livecoin to receive dividends I read on Facebook.