In summary, what you said above is that, bitcoin traders are also good investors, and trading does not stop one from holding some bitcoin for the long term goals, as a trader the most effective thing to do is to keep aside your trading capital and also keep your bitcoin holding capital, this way one can even use the profits their make from trading to buy and hold bitcoin at some point because it clear that trading can give you a significant profits most especially when the trader has skills and experience in the market and taking the right trading step they always be and remain in profits.
Personally I wont want to do both trading and investing at the same time. The mindset of a trader and and that of an investor is not the same. I would be astonished if anyone can comfortably do that without jeopardizing his investment or his trades. There is a saying "you cant serve two master". If we relate that to Bitcoin, we can basically be sincere that its best to either choose to be a trader or an investor. When you focus on one, and implement every strategy and show focus you will be successful in it. I can testify in investment literally.