Originally Posted by Left Handed

I think there is a flaw in that logic. One cannot 'dump stock' without someone else buying it. If you sell it for more than you paid, not only do you make money but the stock is then more valuable because the next person wants to see a profit from when he bought it. The only way stock goes away is when a company buys it back, and that is a good sign, because it means the company thinks has extra money at the time and want to lessen their liability (stock dividends, if they are paid out) and in turn keep even more money for the company. This in turn makes the reduced number of shares of remaining stock more valuable, and the stock price tends to go up (all other external forces remaining the same).
The market also expects normal profit taking from execs when they can, and the market doesn't get too uppity about that. That's part of the reason the execs have to announce they are selling it beforehand. If everyone sold it and then went bankrupt, there would be an investigation on insider trading, because they are not allowed to use foreknowledge of that event to influence the selling of stock.

So this is my not so short way of agreeing with you, in that I think the stock is tied to us forever, and everyone who owns is wants it to do well. Not that I would ever own airline stock either, unless it was given to us in our IPO