It's shorting, not real selling. I have a hunch most nonwhale hodler/accumulators have raked in what they could at increasingly discounted prices. I did, for the most part, as JJGee duly hypothesized (well, grandma apart).
However, shorting much longer (pun, sorry) could turn into risky business if any whale hodler/accumulator smells easy prey. I'd guess on the whole hodlers/accumulators tend to be less aggressive than pump&dumpers, but but. If one's pissed off enough, and the kill is easy enough...
If selling is not logical then I would find shorting even more illogical...