I do not believe that MicroStrategy buys bitcoin to manipulate the market or to become a whale who can pump or dump a coin.
The main purpose of MicroStrategy is to keep on buying Bitcoin BTC on every dip and accumulate it for the long term. They have a vision on how Bitcoin will become a mainstream currency and how much it can gain in price as the adoption of Bitcoin BTC will increase worldwide.
Another thing is that MicroStrategy is the only institute that buys bitcoin at all prices, and they never get panic even if the bitcoin price is lower than their buying price.
Will they sell it one day? Possible
Large companies that have been accumulating Bitcoins for a long time must certainly motivate many people that Bitcoin will guarantee future profits. It's just that we need to be realistic and not deny that bad situations can happen at any time. I don't doubt the investment made by MicroStrategy and indirectly they announced it as a whale in public.
Profit is still profit for the survival of the company, and we, who are only small holders
BTC, need to make wise decisions at the right time.