Does DYOR mean Gam responsibly?

We have some extraordinary experts on this forum. Some know the names of ships arriving, tonnages loaded, reason for delays, weather watch, harbour depth, roadside logistics. Others chart and publish the fibonacci variations on our share price, and forecast future price movements. Some monitor the world market prices for different grades of iron ore, and predict the affect of the Chinese Winter Olympics on iron ore sales. All of you to date have declared sentiment buy, position held.
Then suddenly, management announces "we weren't telling the whole story, just the good news, and a few fibs, or omissions", "and by the way, we're going quiet now". So the share price plummets. Tell me - what own research could have foreseen in this debacle. Seems like you can gamble responsibly, and drink in moderation, do your own research, and still get screwed.