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

Upgrade of the thread hider from https://dis.tinychan.net/read/anarchy/1582047203#reply_499 >>157:
((hideset, hideregexlist) => { Array.from (document.querySelectorAll ("div.outer > div.inner > div.subject > h2 > a")).map (e => [e, e.innerText]).filter (ei => hideset.has (ei [1]) || hideregexlist.some (rx => rx.test (ei [1]))).forEach (ei => { ei [0].parentNode.parentNode.parentNode.parentNode.setAttribute ("style", "display:none"); }); }) (new Set (["Poor Stallman"]), [/^the \S+ of being c....d inside$/i])


"die" post counts >>8,28 362/413 | rates >>30 | 100-groups >>47,49,165 | 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