Panicking as an investor means you lack the believe in the growth potentials and resilience of bitcoin. Bitcoin has gone through different cycles and experienced similar scenarios, Even when its price has not gotten this far. So why now that we have a lot of reference that can keep us going without panicking.
The only problem I see with people panicking is the fact that they still see bitcoin as a get rich quick scheme hence I see no reason one will plan to invest in bitcoin for a long term such as 8-10 years and will be so concerned with bitcoin dipping in a short period of time when you know you're probably not going to touch the investment during those dips or even when the price is increasing hence I consider those who panic in every dip as traders /gamblers who definitely does not know what they are investing into.
When guys know what bitcoin really is they begin to find out ways in which they can increases their holds by selling off a good percentage of their fiat for bitcoin. when investors (real bitcoin investors) seed dips they only see opportunities to buy at a cheaper rate hence dips offers discount to investors.