Can't have it both ways

More than one friend has made the same statement, and I need to wonder why this type of thinking exists.

Scenario:
Leave the former place of employment.
Badmouth the company, list the ways the company can and will fail in the near future.
Hold onto the stock.

I gotta be missing something there.

If you don't believe in a company, then sell the stock.

If you can list out all the reasons why a company will fail in the near future, sell the stock.

If you have knowledge that something is going to go bad, sell the stock.

People have the amazing ability to be blind, even to their own actions.

Be aware when this is happening to you, or your investors.  Take a step back, see what you're doing, see what you're saying, and understand if they're in sync.  And when they're not.