If you see a coin holder who gets angry and attacks others as soon as he sees someone shorting the coin, you can basically conclude that the coin is going downhill and is likely to be doomed.
Because good coins are not afraid of shorting, you only hope that others will short it more and dump the market more so that you can buy more.
It is precisely because the holders themselves have no confidence that they are afraid of shorting. Shorting = robbery.
And when the holders have no confidence = a big collapse.