Nope. The post merely said that the bollingers were narrowing, suggesting a possible break out. Didn't predict when, or to what new price. That is the useful information, and it was missing.

Bollingers can stay narrow for a long time. The trick is determining when they will pop. E.g., let me know when your technical analysis predicts a breakout for CMM.

All bollingers are, are an indication of the delta in support for a stock over time, along with a best-fit depiction of a future price envelope. You will get burned if you decide, for example, that a stock is a good buy because you've looked at the Bolls and it's presently 2 standard deviations below the mean... as a friend of mine at work found out this year with Alcoa.

Trick with TA is knowing what it's telling you.