Following what a company's executives do with buying or selling a stock is not a bad idea for sure. But I'd also think that before doing that ONE would need to know and understand why they're buying or selling their own stock. Also look at what the stock itself has been doing for, say, the last 1, 3 and 6 months.
Stick and forget when buying dips. Is this good or bad? I'd have to believe that would depend a lot on the particular stock. I believe that a Good Company's stock is always a better bet for returning to a strong position, than a new start up has. History and Time will only tell for either. Old Time companies have gone under before and news have survived and thrived.
CONCLUSION: 1- Following the Money trail of Corporate Executives. 2- Never just turn your back on your money. Look at where it's at and what it's doing. Stay proactive.