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/off/ - Lounge/Off-Topic

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Subject
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Verification
Instructions:
  • Press the Get Captcha button to get a new captcha
  • Find the correct answer and type the key in TYPE CAPTCHA HERE
  • Press the Publish button to make a post
  • Incorrect answer to the captcha will result in an immediate ban.
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25 Dec 2021Mathchan is launched into public
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File: mathchan_captcha.png ( 49.47 KB , 574x367 , 1719359599188.png )

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  No. 102
I understand and like the idea of a math captcha, but I don't understand why there's an "I don't know" option.

It's useful to me, because I forgot basically all the mathematical notations I learned in highschool, but is there any effect to posting with that answer? Are posts with it downgraded in some way? It just seems like a very weird and possibly insecure system, especially since the captcha text next to "I don't know" isn't obscured in any way; it's easy enough for an OCR to read.

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[ home ] [ math / cs / ai / phy / as / chem / bio / geo ] [ civ / aero / mech / ee / hdl / os / dev / web / app / sys / net / sec ] [ med / fin / psy / soc / his / lit / lin / phi / arch ] [ off / vg / jp / 2hu / tc / ts / adv / hr / meta / tex ] [ chat ] [ wiki ]