It's time to drop captcha Hiro. On my home wifi I get pic related double word captchas, and turning off legacy puts me on blurry street signs. But when I use the 4g on my phone, I get house numbers or easy images.
Captcha serves no function, delete it
The captcha doesn't serve a function but it does prevent some functions from being served. In particular, it prevents spambots from posting.
You can bypass the captcha by purchasing a 4chan pass. If 20 dollars is too much for you, consider if you actually care about posting on 4chan at all in the first place. If 4chan were a gated community where only people who have paid 20 dollars were allowed to post, would you want to post there at all?
If 20 dollars is difficult for you to come by, I could assist you in getting a simple job with some steady supplementary income.
Not a signature.