system
A chat on subreddit /r/wallstreetbets
human
Well in terms of a trader opening a short, obfuscating the sale of those shares with tools like dark pools etc but keeping record of them rather than directly allowing them to influence the market would make more sense. So you as a trader sells the shares, but you don't get the power to attempt to influence the market with the sale. Similar to a hedge fund using a dark pool etc.

gpt
Your order gets routed to the best price whatever exchange that is on. Look up NBBO