I'm not selling a penny, I'm a HODLER means holding my bitcoin for my life. Don't Invest which you need to withdraw in case of your need / emergency. By this I'm keeping my Bitcoin without any issue. And doing DCA constantly. I'm compounding my BTC not looking at Fiat.
Sometimes selling is not just because you invested more than you can live without but it could also be out of how frustrated the holder have turn out to be due to how the market is moving and being uncertain of what comes next and not also being prepared for it could lead some to selling below the price they have seen before, some might consider such action to be a stop lose action instead of losing entirely they reduce the risk and prepare for buyback which don’t happen sometimes.