That bubble is a good thing if you can use it to get more out of your profits. if bitcoin decreases, just buy more coins and sell if you want to get a lot of profit.
Do you even know what does that bubble means? I don't think that the "bubble" you are saying is the bubble that we are talking about here since you are like using bubble as a word synonym to dump which is not right. Bitcoin is not a bubble, though it is a digital currency that is so volatile and that is being taken advantage of those people who invested on it.