Those who are still believe on bitcoin including me, because bitcoin help them a lot including me also and that's the good thing having a bitcoin and hold it, perhaps many still don't believe in bitcoin but there are strong hope that bitcoin is still the number 1 cryptocurrencies.
Those who already gave up on the future of bitcoin had lost a lot of mobey when they first bought the coin during its bullrun and have no intention to regain it. But many investors have been loyal to the top coin and they firmly believe that someday it will go up again or break another all-time high. Bitcoin suffered a lot of price downtrends before the 2017 bullrun and I also believe that its price will go up again in the future.