There is no such thing as short term investing. You are using the term short term investor to describe trading. ... So when it comes to bitcoin anything less than 4 years is not investing.. it is trading. .you are wanting to play some kind of a price wave. Yeah you might fool yourself into believing that you are investing because you have 1 or 2 or even 3 years, but you are just playing the trade.. Most likely to really consider bitcoin as an investment you need to think in terms of 10 years or more... otherwise, it seems that you are mixing up trading and investing, since it sounds like you are just trying to get in and then out of it with some short term fiat profits and you are not really considering holding it long term.
Even if some folks try to deceive others and create different type of thought because they accumulated with huge amount it’s still not yet time to sell, what makes bitcoin investment grow is the consistency and time we put to make sure we make better profit but, aside profit a long term mindset is absolutely the best. Traders can’t hold their bitcoin for long without withdrawing profit and the surprising part is they don’t care if the investment will fall probably anyone making such move Should be ready to face lose, the idea 4years is just an example and if getting to 4 years anyone can still accumulate if they feel they’ve not gotten enough although the idea of a satisfied portfolio can’t be determined.
big investors are not selling but are still accumilating more Bitcoin so why should you think of selling just because some random trader sells his?
People that are not ready to invest for the long run will always advocate that you sell whenever you're in a slight profit and the main reason for doing that is basically because they don't want to sell alone. They are looking for others that will sell with them so when they eventually start regretting thier actions, they know they are not alone but have someone who they've successfully dragged along. Apart from getting motivated by people that are fellow long term investors, every other thought of selling Bitcoin iether when the market is more bullish than the period you started accumilating or when thier are speculation of a DIP should never clowed your mind to the point you go in to sell your Bitcoin.
Untill you've attained a comfort zone in terms of having a portfolio that's up to at least a 4 year groose total of Bitcoin stack, what should engrossed your mind should always be best buying strategy and not taking out from your profit be it a part or the whole. If you're even previledge to do so when Bitcoin is at a DIP or below the $100k tag, then it's even an added advantage.