I agree that when the company is selling, it is a bad sign.
Also agree that this is all built on hope and imagination.
I do think that companies and CEO's can be wrong. I don't think they really value what they have and are not developing the true value that they have.
So go ahead and sell the coins and let others develop that value (steem-engine..cough, cough)
I may be wrong, but I am willing to bet on it :-)