I don't know why anyone would sell at the moment, but maybe he/her besides trying to scare a SH into selling is trying to trip off any stop loss sell orders in the system.
Week 46 Wrap: Copper hits 2mth low as Trump threatens net zero pace; US rally fades; HotCopper’s picks
AN1 CuFe sells its Crossroads gold royalty to Northern Star for $4M cash; says better than waiting for mine launch