You are right op but Bollinger band and volumes indicators alone will not give you success in trading as there laying indications. Though Bollinger band can be a support and resistance level most time it's do failed completely. There are three fundamental way of analysis the market and you most adhere to it if you want to succeed in trading e.g Technical which price action knowledge can sigle handedly give your support and resistance, entry and exist signal and trading volume.
Very true if the trade is not enough just to use Bollinger bands, I just share with the newbies what it was Bollinger band. I myself have used many tools of analysis, maybe next time I will share more info
