Poker Face
Years ago when online poker was a thing in the US, there were sites that let you look at statistics on other players. They’d give you like one free look, but I realized you could just manually change the player’s name in the link and get unlimited free statistics from them.
I used it a lot to see if someone was a good player or not before sitting down at tables with $20+ buy ins.
Story credit: Reddit / Ranndym