Agree. @volpri uses this stat quite a bit.I saw a statistic on here that said that 70% of breakouts fail.Not sure how accurate that is but anecdotally it feels correct.
IMO breakouts should be played after a reconfirmation of the level.Before that you are still playing the preceding range.
I think the general idea is that after a successful breakout, you wait for the re-test of the level, and then go long if price doesn't go back into the range. Now of course its never going to be as clean as this, and each person has their own definition of what a re-test is, and some might even buy the BO and still make money, even if it fails, because they have small targets. The BO after all will probably need to go high enough that it runs stops, and that might be just enough for the BO trader to make a profit. So its all subjective.