From my perspective, for anyone who had reached an overaccumulation status, then such person would just sell from the overaccumulated portion of their holdings and not necessarily sell any bitcoin with any expectation to buy back cheaper.
Hell yeah you damn right.
For Investors who have managed to reach a fuck you status, selling off their Bitcoin can be a strategic decision that may not really have to involve buying back the bitcoin at a more lesser price. In this situation, they've got more than enough Bitcoin to take care of all their present and future financial needs, so there's absolutely no point buying back since they're actually selling from their abundance.
When investors finally decide to sell from the overaccumulated portion of their Bitcoin holdings, what they're doing is like harvesting some of the profits they've worked so hard to accumulate and compound over the years, and by using this strategic approach, they can be allowed to enjoy the fruits of their investment without actually compromising their overall financial security, which is often the reason why some folks would feel the need to buy back some more bitcoin after selling off some.
Selling Bitcoin shouldn't really be about speculating what the future price movement might look like or timing the market you know, but it should rather be about tapping into their existing overflow of wealth to fund their lifestyle, other forms of investments or even their philanthropic endeavours (if any). And through this, they'll be able to enjoy the benefits of their Bitcoin holdings without without compromising the solidity of their Bitcoin Portfolio but instead, are still able to maintain a stable financial foundation.