That's actually true. There is a point when an investor may have acculated Bitcoin to an extent where he decides to shave off like %10 of his profit to diversify into other assets or use to settle for personal or private matters . So at this point in time it would not be considered as trading or gambling because such investor who have bought and held Bitcoin for 10-20years is Worthy to reap his harvest. But any investor who is bearly new into Bitcoin investment within his first 3 to 4 years who tries thesame thing can be considered as a shirt term investor.