I remember when GXY had been the most shorted stock 2019 or 2020...

I remember when GXY had been the most shorted stock 2019 or 2020 (>20%). Shortly after stock price rose from ca. 0,5US$ to 3,8US$.
It's kind of absurd to short PLS, why not shorting ANY other producer with higher production costs without a good financial base.
As a "non professional" shareholder I come to my own conclusions:

The banks promoting the shorting of e.g. PLS actually own the stock lending it to people being panicked by "Li-downturn". So if Stock market follows and PLS dips, Shorter and promoter are happy (stock price will rise later). If PLS rises, the bank will stay happy, because they get their cost of lending the stock plus higher Stock prices.
The only problem for the bank would be if their shorters cant buy back and get insolvent. This was the case when Gamestop rose from 20$ to 480$. If this will ever happen again, well I don't know, maybe not in the Li-Sector, which would have to gain a lot more popularity.
Unfortunately the Li-Market ist a good market for panicking Shareholders and potential sharholders with high fluctuation in SP.

And if you're in a position to promote shorting, why not take the (in my eyes) BEST positioned Li-Stock without risk of losing it all (in the end you bought them).

And my final conclusion is that PLS is my best choice (especially because it is a.t.m. shorted stock no.1), so I hold and wait and see.