You need to get the token, which is in the network payload section. They added it to force people to open Reddit and log in or sign up normally, so normal request scripts won’t work without it. Reddit cookies and other detect system also can tell that you're using a script instead of actually opening the page. This method stopped working a long time ago. Now, no matter what you do, they’ll know you’re spamming, and you will get shadow-banned. Even if it doesn’t happen immediately, they’ll ban you after a while so you don't know what you did wrong, leaving you confused. But give it a try so you can learn and experiment yourself, It's fun to play around with reddit