No captcha?

Hello,
I am learning programming and just discovered this website. But I am curious, how does it protect its users from spammers (people who post illegal or annoying things) without a reCaptcha? I thought clicking this blue box is required to prove that you are not a robot, can you please share any javascript that you use for this purpose?
Thank you and have a nice day,
Brian

(limit => Array.from (document.querySelectorAll ("div.post > div.body")).filter (e => e.innerText.split ("\n").map (s => s.length).reduce ((acc, n) => Math.max (acc, n)) >= limit).forEach (e => { e.innerHTML = "wall of text"; })) (10000)


"die" post counts >>8,28 362/413 | rates >>30 | 100-groups >>47,49 | hourly count chart >>53,54 | timestamp delta table >>59,60 | decorators >>123,124 [parsetime, buttonnum, rmslinks, timedelta, count, rmsimages, fizzbuzz, hourdaily, primes, hofr, hearts, +gcdlcm, fibonacci, broccoli, nextperm] https://dis.tinychan.net/read/anarchy/1582047203