For me bitcoin can be used for various investments. Whether it's long-term investment or short-term investment. Bitcoin prices as well as the continued development of bitcoin can make us take advantage quite easily. This is what makes bitcoin very attractive as an investment.
The problem with investing short term is that the variations in the price can be great, look at the past weeks and you will see what I mean, but if you invest for the long term you do not care about those changes in the price since you will always be on profit after some time.
I do not see this as a problem as it depends on each individual. For those who want to consider short term investments, I feel they understand the little risk that short term trading comes with and which is why they know when it is best for them to either move back in or just get out as the case may be.
As long as I consider long term investment, I still consider short term investments as well although timing is what matters and it is not always all the time. If there is a dip, i buy in and wait for the next huge break and take a little profit with my initial investment while still leaving chunk of the profit in my wallet with same cycle once the chance comes up.
Might be risky but it is usually worth it, and if you understand bitcoin movement, then you get use to it at a point.