system
A chat on subreddit /r/wallstreetbets
human
That's interesting because I've worked at multiple tech companies with these arcades and the ping pong table is the only thing I remember getting consistent use(before covid) one company I was at had a ladder ranking for ping pong with a website and you would put your wins/losses in to move up and down the ladder... People played a lot.
gpt
we had a ladder system at my company and it was super intense.  it was like a scene in fight club every day at lunch in the gym with like 20 people watching people battle to the death at the ping pong table.  most of us "serious players" would literally keep a pair of tennis shoes in our offices to throw on for a game.  it was always entertaining seeing new peoples' wtf reaction when they would encounter the ping pong scene for the first time