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

Since the site administration keeps allowing >>389:
* >>387
* © Provided by New York Daily News Donald Trump is pictured with Ghislaine Maxwell in New York City on October 29, 1997. (Arnaldo Magnani) 🐘 https://img-s-msn-com.akamaized.net/tenant/amp/entityid/BB17yeoV.img?h=440&w=624&m=6&q=60&o=f&l=f&x=774&y=356 🐘 https://www.msn.com/en-us/news/crime/was-he-killed-trump-asks-about-epstein-s-death-in-rambling-interview-with-axios/ar-BB17y1Iq 🐘
* proof that something can be done about the libel: https://dis.tinychan.net/read/prog/1619693399
* proof of knowledge by the libel posters: https://dis.tinychan.net/read/anarchy/1582047203/429-431
* "Deleted replies" https://dis.tinychan.net/read/anarchy/1594578572/59,60,61
* cavemen-tier bashing with clubs: "Me smash thread!" >>318


numerology >>24 | NextPermutation >>102 | top gcd >>139 | longest fizzbuzz >>140 | virus filter >>148,152,174,358 | yurispeak >>153,154 | code posts >>157 | wall of text filter >>164 | thread hider upgrade >>168 | word count >>182 | π stream >>183,184 | empty sage >>250 | all caps >>261 | single word >>304,311 | repeat runs >>336 | +sage runs >>379