They also save you time and needless fretting over your response
Lest I look like a total bag of dirt, I have a specific window of time in which I can respond to a text once someone knows I've read it. It's a bit like disarming a bomb; once I open that sucker, I'm on countdown. If I don't take action in a timely manner, I risk offending the recipient, or worse -- looking like a total flippin' loser by hesitating.
This is precisely why most people keep their read receipts off: They like to take their sweet-ass time. Especially when it comes to dating, a perfectly timed buffer between texts with a potential partner makes you seem cool and aloof, and gives the impression that you're mad busy interacting with other people in real life. It's a well-known tactic in the art of seduction, aka gradually convincing someone to let you sleep over every night in the summer because they have central air conditioning and you just have a dang window fan.
Yet it is also a widely known fact that this buffer period of cool aloofness is actually spent meticulously workshopping a response, probably with the help of two to eight friends in a separate group chat. These are foolish games, folks. With rare exception, no one text is worth agonizing over -- no matter who's on the receiving end.