Recently a 4channer solved a math problem: https://www.theverge.com/2018/10/24/18019464/4chan-anon-anime-haruhi-math-mystery https://www.theverge.com/2018/10/24

Recently a 4channer solved a math problem: https://www.theverge.com/2018/10/24/18019464/4chan-anon-anime-haruhi-math-mystery https://www.theverge.com/2018/10/24/18019464/4chan-anon-anim... Your best way is to use archive.org, wikipedia or other encyclopedias (dramatica for bulletin board culture).