My take is that some party or parties with significant capital want to vacuum up BTC and ...
yes but how long will this party going to keep doing this?
once they stop buy, will they sell some? ...
WHY are they buying?
do they want to own the market, so they can manipulate us into buying or selling when they want?
I may simply be projecting, but I assume that said theoretical party/parties have some of the same motivations as I. That is, they consider the Bitcoin solution have a very high potential value and see BTC as hugely undervalued at this time.
If this is the case, they, like I, would mostly cash out if they sense an imminent collapse of the solution or if the value starts to approach the theorized peak. Probably also like I, such parties don't really need the funds they've speculated in Bitcoin and can absorb a 100% loss (and consider it the most likely outcome.) So I would expect selling to be more muted than it might otherwise be.