I have nearly my entire net worth in Bitcoin, but I don’t think that Saylor accumulating a lot is a positive signal. If it were commodity that isn’t Bitcoin, the idea that a single guy is accumulating so much means that court or debtor pressure on him could lead to him being forced to divest. It means that price is driven by small numbers of speculators, rather than organic growth.
For something equivalent in history, look at the Hunt Brothers attempting to corner the market on silver in 1980. Metalsheads in 1980 were saying the same thing — “look at how much silver the Hunt Brothers are buying! Don’t people know the inherent scarcity of silver?” The price of silver crashed soon after.
https://en.wikipedia.org/wiki/Silver_Thursday